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  EBMcalc EHR Connect Parameter Catalog

 
This material contains content from LOINC® (http://loinc.org). The LOINC table, LOINC codes, and LOINC panels and forms file are copyright © 1995-2014, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and available at no cost under the license at http://loinc.org/terms-of-use.
 
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  A

 
Online calculator: A-a Gradient
Source file: AAGradient.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes I27.82 Chronic pulmonary embolism; I50.9 Heart failure, unspecified; T79.1XXA Fat embolism (traumatic), initial encounter; J18.0 Bronchopneumonia, unspecified organism
Associated ICD9-CM codes 482.9 Bacterial pneumonia nos; 485 Bronchopneumonia org nos; 481 Pneumococcal pneumonia; 480.9 Viral pneumonia nos; 958.1 Fat embolism; 673.20 Ob pulm embol nos-unspec; 428.0 Chf nos

 
Equation: p_Atm = 760 * eTo(Elevation / -7000)
 
Equation: p_H2O = 47 * eTo((Patient_Temp - 37) / 18.4)
 
Equation: FIO2 = Percent_Inspired_O2 / 100
LOINC of Result: 19993-5 : %O2 : 19992-7 : %O2 : 19994-3 : %O2 : 19996-8 : %O2 : 19995-0 : %O2
 
Equation: Expected_AaG = 2.5 + (0.21 * Age)
Default Result Unit: mmHg
Allowable Result Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Equation: Measured_AaG = (FIO2 * (p_Atm - p_H2O)) - (p_CO2 / Resp_Quot) + (p_CO2 * FIO2 * (1 - Resp_Quot) / Resp_Quot) - p_aO2
LOINC of Result: 19991-9 : mmHg : 53809-0 : mmHg
Default Result Unit: mmHg
Allowable Result Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Patient_Temp
LOINC: 8310-5 : degC
Default Unit: degC
Allowable Units: degC  degF  
Default value: 37 degC
Maximum value: 50 degC
 
Variable: Elevation
Default Unit: meters
Allowable Units: meters  feet  
Maximum value: 10000 meters
 
Variable: Percent_Inspired_O2
LOINC: 19993-5 : %O2 : 19992-7 : %O2 : 19994-3 : %O2 : 19996-8 : %O2 : 19995-0 : %O2
Default Unit: %O2
Allowable Units: %O2  fractionO2  litresO2  
Default value: 21 %O2
Minimum value: 1 %O2
Maximum value: 100 %O2
 
Variable: p_CO2
LOINC: 2019-8 : mmHg : 34705-4 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: Resp_Quot
Default Unit: ratio
Allowable Units: fraction  rate  ratio  %  percent  
Default value: 0.8 ratio
Minimum value: 0.01 ratio
Maximum value: 1 ratio
 
Variable: p_aO2
LOINC: 11556-8 : mmHg : 2703-7 : mmHg : 19254-2 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
 


 
Online calculator: a/A Ratio
Source file: AARatio.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes I27.82 Chronic pulmonary embolism; I50.9 Heart failure, unspecified; T79.1XXA Fat embolism (traumatic), initial encounter; J18.0 Bronchopneumonia, unspecified organism
Associated ICD9-CM codes 482.9 Bacterial pneumonia nos; 485 Bronchopneumonia org nos; 481 Pneumococcal pneumonia; 480.9 Viral pneumonia nos; 958.1 Fat embolism; 673.20 Ob pulm embol nos-unspec; 428.0 Chf nos

 
Equation: aAR = p_aO2 / (( p_Atm - p_H2O) * FIO2/100 - ( p_CO2 / Resp_Quot ))
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: p_Atm
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
Default value: 760 mmHg
 
Variable: p_H2O
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
Default value: 47 mmHg
 
Variable: FIO2
LOINC: 19993-5 : %O2 : 19992-7 : %O2 : 19994-3 : %O2 : 19996-8 : %O2 : 19995-0 : %O2
Default Unit: %O2
Allowable Units: %O2  fractionO2  litresO2  
Default value: 21 %O2
Maximum value: 100 %O2
 
Variable: p_CO2
LOINC: 2019-8 : mmHg : 34705-4 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: Resp_Quot
Default Unit: ratio
Allowable Units: fraction  rate  ratio  %  percent  
Default value: 0.8 ratio
Minimum value: 0.01 ratio
Maximum value: 100 ratio
 
Variable: p_aO2
LOINC: 11556-8 : mmHg : 2703-7 : mmHg : 19254-2 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
 


 
Online calculator: AaPO2 Correction for FIO2
Source file: AaPO2Correction.eq
EBMcalc Version: 8.8
Associated ICD10-CM codes I27.82 Chronic pulmonary embolism; I50.9 Heart failure, unspecified; T79.1XXA Fat embolism (traumatic), initial encounter; J18.0 Bronchopneumonia, unspecified organism
Associated ICD9-CM codes 482.9 Bacterial pneumonia nos; 485 Bronchopneumonia org nos; 481 Pneumococcal pneumonia; 480.9 Viral pneumonia nos; 958.1 Fat embolism; 673.20 Ob pulm embol nos-unspec; 428.0 Chf nos

 
Equation: AaPO2_Corrected = 21 * AaPO2 / FIO2
Default Result Unit: torr
Allowable Result Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: AaPO2
Default Unit: torr
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: FIO2
LOINC: 19993-5 : %O2 : 19992-7 : %O2 : 19994-3 : %O2 : 19996-8 : %O2 : 19995-0 : %O2
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
 


 
Online calculator: Absolute Eosinophil Count
Source file: AbsEoCount.eq
EBMcalc Version: 13.4
Associated ICD10-CM codes D72.1 Eosinophilia
Associated ICD9-CM codes 288.3 Eosinophilia

 
Equation: Absolute_Eosinophil_Count = WBC * Eosinophils / 100
LOINC of Result: 26449-9 : cells/microL
Default Result Unit: cells/microL
Allowable Result Units: /microL  /mcL  #/microL  #/mcL  cells/microL  cells/mcL  x10(6)/L  x10^6/L  x10(3)/microL  x10^3/microL  x10(3)/mcL  x10^3/mcL  x10(9)/L  x10^9/L  x10(6)/microL  x10^6/microL  x10(6)/mcL  x10^6/mcL  x10(12)/L  x10^12/L  
 
Variable: WBC
LOINC: 6690-2 : #/microL
Default Unit: cells/microL
Allowable Units: /microL  /mcL  #/microL  #/mcL  cells/microL  cells/mcL  x10(6)/L  x10^6/L  x10(3)/microL  x10^3/microL  x10(3)/mcL  x10^3/mcL  x10(9)/L  x10^9/L  x10(6)/microL  x10^6/microL  x10(6)/mcL  x10^6/mcL  x10(12)/L  x10^12/L  
 
Variable: Eosinophils
LOINC: 32593-6 : %
Default Unit: %
Allowable Units: fraction  ratio  %  
Maximum value: 100 %
 
 


 
Online calculator: Absolute Lymphocyte Count
Source file: AbsLymphocyteCnt.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes D72.810 Lymphocytopenia; D72.820 Lymphocytosis (symptomatic); D61.9 Aplastic anemia, unspecified
Associated ICD9-CM codes 288.61 Lymphocytosis symptomatc; 288.51 Lymphocytopenia; 284.9 Aplastic anemia nos

 
Equation: ALC = WBC * Lymphs / 100
LOINC of Result: 731-0 : 10^3/microL : 26474-7 : 10^3/microL
Default Result Unit: x10(3)/microL
Allowable Result Units: /microL  /mcL  #/microL  #/mcL  cells/microL  cells/mcL  x10(6)/L  x10^6/L  x10(3)/microL  x10^3/microL  x10(3)/mcL  x10^3/mcL  x10(9)/L  x10^9/L  x10(6)/microL  x10^6/microL  x10(6)/mcL  x10^6/mcL  x10(12)/L  x10^12/L  
 
Variable: WBC
LOINC: 6690-2 : #/microL
Default Unit: x10(3)/microL
Allowable Units: /microL  /mcL  #/microL  #/mcL  cells/microL  cells/mcL  x10(6)/L  x10^6/L  x10(3)/microL  x10^3/microL  x10(3)/mcL  x10^3/mcL  x10(9)/L  x10^9/L  x10(6)/microL  x10^6/microL  x10(6)/mcL  x10^6/mcL  x10(12)/L  x10^12/L  
 
Variable: Lymphs
LOINC: 736-9 : % : 735-1 : % : 737-7 : % : 15197-7 : % : 26478-8 : %
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 100 %
 
 


 
Online calculator: Absolute neutrophil count
Source file: AbsNeutrophileCnt.eq
EBMcalc Version: 8.7

 
Equation: ANC = WBC_count * ((PMNs/100) + (Bands/100))
LOINC of Result: 26499-4 : 10^3/microL : 751-8 : 10^3/microL
Default Result Unit: cells/microL
Allowable Result Units: /microL  /mcL  #/microL  #/mcL  cells/microL  cells/mcL  x10(6)/L  x10^6/L  x10(3)/microL  x10^3/microL  x10(3)/mcL  x10^3/mcL  x10(9)/L  x10^9/L  x10(6)/microL  x10^6/microL  x10(6)/mcL  x10^6/mcL  x10(12)/L  x10^12/L  
 
Variable: WBC_count
Default Unit: cells/microL
Allowable Units: /microL  /mcL  #/microL  #/mcL  cells/microL  cells/mcL  x10(6)/L  x10^6/L  x10(3)/microL  x10^3/microL  x10(3)/mcL  x10^3/mcL  x10(9)/L  x10^9/L  x10(6)/microL  x10^6/microL  x10(6)/mcL  x10^6/mcL  x10(12)/L  x10^12/L  
 
Variable: PMNs
Default Unit: percent
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 100 percent
 
Variable: Bands
LOINC: 764-1 : % : 35332-6 : % : 26508-2 : %
Default Unit: percent
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 100 percent
 
 


 
Online calculator: Absolute Reticulocyte Count
Source file: AbsReticCnt.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes D53.1 Other megaloblastic anemias, not elsewhere classified; D50.8 Other iron deficiency anemias; D59.1 Other autoimmune hemolytic anemias; D59.0 Drug-induced autoimmune hemolytic anemia; D59.9 Acquired hemolytic anemia, unspecified; D64.9 Anemia, unspecified; D61.9 Aplastic anemia, unspecified
Associated ICD9-CM codes 280.8 Iron defic anemia nec; 281.3 Megaloblastic anemia nec; 281.0 Pernicious anemia; 282.60 Sickle-cell anemia nos; 284.9 Aplastic anemia nos; 285.9 Anemia nos; 283.9 Acq hemolytic anemia nos; 283.0 Autoimmun hemolytic anem

 
Equation: ARC = Retic_Percent * RBC / 100
LOINC of Result: 14196-0 : 10^3/microL : 40665-2 : 10^3/microL : 60474-4 : 10^3/microL
Default Result Unit: x10(6)/microL
Allowable Result Units: /microL  /mcL  #/microL  #/mcL  cells/microL  cells/mcL  x10(6)/L  x10^6/L  x10(3)/microL  x10^3/microL  x10(3)/mcL  x10^3/mcL  x10(9)/L  x10^9/L  x10(6)/microL  x10^6/microL  x10(6)/mcL  x10^6/mcL  x10(12)/L  x10^12/L  
 
Variable: Retic_Percent
LOINC: 4679-7 : %
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: RBC
LOINC: 789-8 : 10^6/microL : 790-6 : 10^9/microL
Default Unit: x10(6)/microL
Allowable Units: /microL  /mcL  #/microL  #/mcL  cells/microL  cells/mcL  x10(6)/L  x10^6/L  x10(3)/microL  x10^3/microL  x10(3)/mcL  x10^3/mcL  x10(9)/L  x10^9/L  x10(6)/microL  x10^6/microL  x10(6)/mcL  x10^6/mcL  x10(12)/L  x10^12/L  
 
 


 
Online calculator: Acetaminophen (Paracetamol) Toxicity Assessment
Source file: AcetaminophenTox.cc
EBMcalc Version: 8.9
Associated ICD10-CM codes T50.901A Poisoning by unspecified drugs, medicaments and biological substances, accidental (unintentional), initial encounter
Associated ICD9-CM codes E850.0 Acc poison-analgesic nos; E950.0 Poison-analgesics; E950.0 Poison-drug/medicin nos; 977.9 Poison-medicinal agt nos

 
Equation: ToxLevel = eTo(5.298317 - ((Hours_After_Ingestion - 4) * 0.1732868))
 
Equation: RxLevel = ToxLevel - (0.25 * ToxLevel)
 
Variable: Hours_After_Ingestion
Default Unit: Hours
Allowable Units: Hours  Days  
Minimum value: 4 Hours
Maximum value: 24 Hours
 
Variable: Acetaminophen_Level
LOINC: 12442-0 : mcg/mL : 22736-3 : mcmol/L : 3298-7 : mcg/mL : 14581-3 : mcmol/L
Default Unit: mcg/mL_acet
Allowable Units: mcg/mL_acet  mg/L_acet  mcmol/L_acet  
 
 


 
Online calculator: Acute Heart Failure Prediction Based on NT-proBNP and Clinical Features
Source file: CHF_BNP.eq
EBMcalc Version: 13.1
Associated ICD10-CM codes I50.31 Acute diastolic (congestive) heart failure; I50.21 Acute systolic (congestive) heart failure; I50.32 Chronic diastolic (congestive) heart failure; I50.22 Chronic systolic (congestive) heart failure; I50.30 Unspecified diastolic (congestive) heart failure; I50.9 Heart failure, unspecified; I50.1 Left ventricular failure
Associated ICD9-CM codes 428.1 Left heart failure; 428.9 Heart failure nos; 428.30 Diasystol heart fail nos; 428.3 Diastolic heart failure; 428.22 Chr systol heart failur; 428.32 Chr diastol heart fail; 428.21 Ac systol heart failure; 428.31 Ac diastol heart fail

 
Equation: Post_Test_Prob_CHF = 100 / (1 + eTo(8 + (0.011 * Age) - (0.059 * Pre_Test_Prob_CHF) - (2.3 * log(NT_proBNP)) + (0.0082 * Pre_Test_Prob_CHF * log(NT_proBNP))))
Default Result Unit: %
Allowable Result Units: fraction  ratio  %  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Pre_Test_Prob_CHF
Default Unit: %
Allowable Units: fraction  ratio  %  
 
Variable: NT_proBNP
LOINC: 30934-4 : pg/mL : 42637-9 : pg/mL : 33762-6 : pg/mL
Default Unit: pg/mL
Allowable Units: pg/mL  
 
 


 
Online calculator: Alcoholic Liver Disease: Criteria for One Year Mortality Prognosis
Source file: AlcLiverDxSeverity.cc
EBMcalc Version: 8.7
Associated ICD10-CM codes T51.91XA Toxic effect of unspecified alcohol, accidental (unintentional), initial encounter; K70.0 Alcoholic fatty liver; K70.9 Alcoholic liver disease, unspecified; K70.10 Alcoholic hepatitis without ascites; K70.30 Alcoholic cirrhosis of liver without ascites
Associated ICD9-CM codes 571.2 Alcohol cirrhosis liver; 571.1 Ac alcoholic hepatitis; 571.3 Alcohol liver damage nos; 571.0 Alcoholic fatty liver; 980.9 Toxic effect alcohol nos; 980.0 Toxic eff ethyl alcohol

 
Equation: LR_Score = 6 + (1.03 * Encephalopathy)- (2.5 * Hb / Sex) - (1.56 * Albumin)
Default Result Unit: score
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Mortality = 100 * eTo(LR_Score) / (1 + eTo(LR_Score))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 14
Discrete variable option: Male Variable value: 15
 
Variable: Hb
LOINC: 718-7 : g/dL : 718-7 : gm/dL : 59260-0 : mmol/L
Default Unit: g/dL
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
Minimum value: 1 g/dL
Maximum value: 15 g/dL
 
Variable: Albumin
LOINC: 1751-7 : g/dL
Default Unit: g/dL_Alb
Allowable Units: g/dL_Alb  g/L_Alb  gm/dL_Alb  gm/L_Alb  mg/dL_Alb  mg/L_Alb  
Maximum value: 6 g/dL_Alb
 
Radio Button Variable: Encephalopathy
Discrete variable option: Grade 1 Variable value: 1
Discrete variable option: Grade 2 Variable value: 2
Discrete variable option: Grade 3 Variable value: 3
 
 


 
Online calculator: Allowable Blood Loss
Source file: AllowableBloodLoss.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes D62 Acute posthemorrhagic anemia
Associated ICD9-CM codes 285.1 Ac posthemorrhag anemia

 
Equation: Blood_Vol = Weight * Avg_Blood_Vol
Default Result Unit: mL
Allowable Result Units: fL  mL  L  
 
Equation: Allowable_Loss = Blood_Vol * ln( Initial_Hct / Final_Hct )
Default Result Unit: mL
Allowable Result Units: fL  mL  L  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
Radio Button Variable: Avg_Blood_Vol
Discrete variable option: Men Variable value: 75
Discrete variable option: Women Variable value: 65
Discrete variable option: Infants Variable value: 80
Discrete variable option: Neonates Variable value: 85
Discrete variable option: Premature Neonates Variable value: 96
 
Variable: Initial_Hct
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: Final_Hct
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
 


 
Online calculator: Amikacin Dosing q24hr (also Kanamycin and Streptomycin)
Source file: AmikacinDosing.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes Z79.2 Long term (current) use of antibiotics; T36.91XA Poisoning by unspecified systemic antibiotic, accidental (unintentional), initial encounter
Associated ICD9-CM codes E930.0 Adv eff antibiotic nos; E930.0 Adv eff antibiotics nec; V58.62 Long-term use antibiotic; 960.9 Poisoning-antibiotic nos

 
Equation: Dose = Renal_Factor * Weight
Default Result Unit: mg
Allowable Result Units: mcg  mg  gm  
 
Radio Button Variable: Renal_Factor
Discrete variable option: Creat Clear >80 Variable value: 15
Discrete variable option: Creat Clear 60-80 Variable value: 12
Discrete variable option: Creat Clear 40-60 Variable value: 7.5
Discrete variable option: Creat Clear 30-40 Variable value: 4
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
 
 


 
Online calculator: Amikacin Dosing to Produce Desired Peak and Trough Levels
Source file: AmikacinDosingForLevels.cp
EBMcalc Version: 8.9

 
Equation: IBW = Math.abs(Height > 60) * (2.3 * (Height - 60)) + IBW_Sex
Default Result Unit: kg
Allowable Result Units: kg  lb  
 
Equation: DW = Math.abs(Weight > (1.2 * IBW)) * (0.4 * (Weight - IBW)) + IBW
Default Result Unit: kg
Allowable Result Units: kg  lb  
 
Equation: CrCl = ((140 - Age) * (Weight_CrCl / (Serum_Creat * 72))) * CrCl_Sex
LOINC of Result: 33558-8 : mL/min : 2164-2 : mL/min
Default Result Unit: mL/min
Allowable Result Units: mL/hr  mL/min  L/hr  
 
Equation: Ke = (0.0024 * CrCl) + 0.01
Default Result Unit: hr-1
Allowable Result Units:
 
Equation: Half_Life = 0.693 / Ke
Default Result Unit: hr
Allowable Result Units: min  hr  day  
 
Equation: VD = DW * Distribution_Factor
Default Result Unit: L
Allowable Result Units: mL  L  
 
Equation: Dosing_Interval = ((1 / Ke) * ln(Desired_Peak / Desired_Trough)) + Infusion_Time
Default Result Unit: hr
Allowable Result Units: min  hr  day  
 
Equation: Loading_Dose = (VD * Infusion_Time * Ke * Desired_Peak) / (1 - eTo(-Ke * Infusion_Time))
Default Result Unit: mg
Allowable Result Units: mcg  mg  gm  
 
Equation: Maintenance_Dose = (VD * Infusion_Time * Ke * Desired_Peak * (1 - eTo(-Ke * Dosing_Interval))) / (1 - eTo(-Ke * Infusion_Time))
Default Result Unit: mg
Allowable Result Units: mcg  mg  gm  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: in
Allowable Units: cm  m  in  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL
Allowable Units: mg%  mg/dL  gm/dL  gm/L  mg/mL  
 
Radio Button Variable: Distribution_Factor
Discrete variable option: 0.25 L/kg Variable value: 0.25
Discrete variable option: 0.30 L/kg Variable value: 0.3
Discrete variable option: 0.35 L/kg Variable value: 0.35
 
Variable: Infusion_Time
Default Unit: hr
Allowable Units: min  hr  day  
Default value: 0.5 hr
 
Variable: Desired_Peak
Default Unit: mg/L
Allowable Units: mg/L  mcg/mL  
 
Variable: Desired_Trough
Default Unit: mg/L
Allowable Units: mg/L  mcg/mL  
 
 


 
Online calculator: Amikacin Level Prediction from Maintenance Dosing
Source file: AmikacinLevelPrediction.cp
EBMcalc Version: 8.9

 
Equation: IBW = Math.abs(Height > 60) * (2.3 * (Height - 60)) + IBW_Sex
Default Result Unit: kg
Allowable Result Units: kg  lb  
 
Equation: DW = Math.abs(Weight > (1.2 * IBW)) * (0.4 * (Weight - IBW)) + IBW
Default Result Unit: kg
Allowable Result Units: kg  lb  
 
Equation: CrCl = ((140 - Age) * (Weight_CrCl / (Serum_Creat * 72))) * CrCl_Sex
LOINC of Result: 33558-8 : mL/min : 2164-2 : mL/min
Default Result Unit: mL/min
Allowable Result Units: mL/hr  mL/min  L/hr  
 
Equation: Ke = (0.0024 * CrCl) + 0.01
Default Result Unit: hr-1
Allowable Result Units:
 
Equation: Half_Life = 0.693 / Ke
Default Result Unit: hr
Allowable Result Units: min  hr  day  
 
Equation: VD = DW * Distribution_Factor
Default Result Unit: L
Allowable Result Units: mL  L  
 
Equation: Predicted_Peak = (Dose * (1 - eTo(-Ke * Infusion_Time))) / (Ke * VD * Infusion_Time * (1 - eTo(-Ke * Dose_Interval)))
Default Result Unit: mg/L
Allowable Result Units: mg/L  mcg/mL  
 
Equation: Predicted_Trough = Predicted_Peak * eTo(-Ke * (Dose_Interval - Infusion_Time))
Default Result Unit: mg/L
Allowable Result Units: mg/L  mcg/mL  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: in
Allowable Units: cm  m  in  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL
Allowable Units: mg%  mg/dL  gm/dL  gm/L  mg/mL  
 
Radio Button Variable: Distribution_Factor
Discrete variable option: 0.25 L/kg Variable value: 0.25
Discrete variable option: 0.30 L/kg Variable value: 0.3
Discrete variable option: 0.35 L/kg Variable value: 0.35
 
Variable: Dose
Default Unit: mg
Allowable Units: mcg  mg  gm  
 
Variable: Dose_Interval
Default Unit: hr
Allowable Units: min  hr  day  
 
Variable: Infusion_Time
Default Unit: hr
Allowable Units: min  hr  day  
Default value: 0.5 hr
 
 


 
Online calculator: Amikacin Steady State Dosage Adjustment
Source file: AmikacinSteadyState.cp
EBMcalc Version: 8.9

 
Equation: Ke = (ln(Measured_Peak) - ln(Measured_Trough))/(Trough_Hours_After_Dose - Peak_Hours_After_Dose)
Default Result Unit: hr-1
Allowable Result Units:
 
Equation: Half_Life = 0.693 / Ke
Default Result Unit: hr
Allowable Result Units: min  hr  day  
 
Equation: VD = Current_Dose * (1 - eTo(-Ke * Infusion_Time))/ (Ke * Infusion_Time * (Measured_Peak - (Measured_Trough * eTo(-Ke * Infusion_Time))))
Default Result Unit: L
Allowable Result Units: mL  L  
 
Equation: New_Dosing_Interval = ((1 / Ke) * ln(Desired_Peak / Desired_Trough)) + Infusion_Time
Default Result Unit: hr
Allowable Result Units: min  hr  day  
 
Equation: New_Dose = VD * Infusion_Time * Ke * Desired_Peak * (1 - eTo(-Ke * New_Dosing_Interval))/ (1 - eTo(-Ke * Infusion_Time))
Default Result Unit: mg
Allowable Result Units: mcg  mg  gm  
 
Variable: Current_Dose
Default Unit: mg
Allowable Units: mcg  mg  gm  
 
Variable: Infusion_Time
Default Unit: hr
Allowable Units: min  hr  day  
Default value: 0.5 hr
 
Variable: Measured_Peak
Default Unit: mg/L
Allowable Units: mg/L  mcg/mL  
 
Variable: Peak_Hours_After_Dose
Default Unit: hr
Allowable Units: min  hr  day  
 
Variable: Measured_Trough
Default Unit: mg/L
Allowable Units: mg/L  mcg/mL  
 
Variable: Trough_Hours_After_Dose
Default Unit: hr
Allowable Units: min  hr  day  
 
Variable: Desired_Peak
Default Unit: mg/L
Allowable Units: mg/L  mcg/mL  
 
Variable: Desired_Trough
Default Unit: mg/L
Allowable Units: mg/L  mcg/mL  
 
 


 
Online calculator: Aminoglycoside Clearance Estimate
Source file: AminoGlycCl.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes Z79.2 Long term (current) use of antibiotics; T36.91XA Poisoning by unspecified systemic antibiotic, accidental (unintentional), initial encounter
Associated ICD9-CM codes E930.0 Adv eff antibiotic nos; E930.0 Adv eff antibiotics nec; V58.62 Long-term use antibiotic; 960.9 Poisoning-antibiotic nos

 
Equation: Ag_Clear = 0.6 * (Sex * ((140 - Age) / (Serum_Creat)) * (Weight / 72)) + 10
Default Result Unit: mL/min
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0.85
Discrete variable option: Male Variable value: 1
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
 


 
Online calculator: Amortization of Student Loans
Source file: AmortLoan.eq
EBMcalc Version: 8.9

 
Equation: Base = 1 + (Rate / 1200)
 
Equation: Monthly = Loan / Acc
Default Result Unit: $
Allowable Result Units: $  cents  
 
Variable: Rate
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: Loan
Default Unit: $
Allowable Units: $  cents  
 
Variable: Months
Default Unit: mo
Allowable Units: mo  yr  
 
 


 
Online calculator: Anion Gap Delta Delta Gradient Multicalc
Source file: AnionGapDeltaGradient.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes P74.0 Late metabolic acidosis of newborn; E87.2 Acidosis
Associated ICD9-CM codes 276.2 Acidosis; 775.7 Late metab acidosis nb

 
Equation: Anion_Gap = Na - (Cl + HCO3)
LOINC of Result: 10466-1 : mEq/L : 33037-3 : mEq/L
Default Result Unit: mEq/L_AG
Allowable Result Units: mEq/L_AG  mmol/L_AG  
 
Equation: Delta_Gap = Anion_Gap - Baseline_Gap
Default Result Unit: mEq/L_DeltaAG
Allowable Result Units: mEq/L_DeltaAG  mmol/L_DeltaAG  
 
Equation: Delta_HCO3 = 25 - HCO3
Default Result Unit: mEq/L_HCO3
Allowable Result Units: mEq/L_HCO3  mmol/L_HCO3  
 
Equation: Delta_Delta_Gradient = Delta_Gap - Delta_HCO3
Default Result Unit: mEq/L_AG
Allowable Result Units: mEq/L_AG  mmol/L_AG  
 
Variable: Na
LOINC: 2951-2 : mmol/L : 2947-0 : mEq/L : 32340-2 : mEq/L : 39791-9 : mEq/L
Default Unit: mEq/L_Na
Allowable Units: mEq/L_Na  mmol/L_Na  
Minimum value: 80 mEq/L_Na
Maximum value: 200 mEq/L_Na
 
Variable: Cl
LOINC: 2075-0 : mEq/L : 2069-3 : mEq/L : 41649-5 : mEq/L : 32307-1 : mEq/L
Default Unit: mEq/L_Cl
Allowable Units: mEq/L_Cl  mmol/L_Cl  
Minimum value: 60 mEq/L_Cl
Maximum value: 180 mEq/L_Cl
 
Variable: HCO3
LOINC: 1959-6 : mEq/L : 1960-4 : mEq/L : 14627-4 : mEq/L : 1961-2 : mEq/L : 22735-5 : mEq/L : 1963-8 : mEq/L
Default Unit: mEq/L_HCO3
Allowable Units: mEq/L_HCO3  mmol/L_HCO3  
Maximum value: 30 mEq/L_HCO3
 
Variable: Baseline_Gap
Default Unit: mEq/L_BaseAG
Allowable Units: mEq/L_BaseAG  mmol/L_BaseAG  
Maximum value: 50 mEq/L_BaseAG
 
 


 
Online calculator: Anion Gap Delta Delta Ratio Multicalc
Source file: AnionGapDeltaRatio.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes P74.0 Late metabolic acidosis of newborn; E87.2 Acidosis
Associated ICD9-CM codes 276.2 Acidosis; 775.7 Late metab acidosis nb

 
Equation: Anion_Gap = Na - (Cl + HCO3)
LOINC of Result: 10466-1 : mEq/L : 33037-3 : mEq/L
Default Result Unit: mEq/L_AG
Allowable Result Units: mEq/L_AG  mmol/L_AG  
 
Equation: Delta_Gap = Anion_Gap - Baseline_Gap
Default Result Unit: mEq/L_DeltaAG
Allowable Result Units: mEq/L_DeltaAG  mmol/L_DeltaAG  
 
Equation: Delta_HCO3 = 25 - HCO3
Default Result Unit: mEq/L_HCO3
Allowable Result Units: mEq/L_HCO3  mmol/L_HCO3  
 
Equation: Delta_Delta_Ratio = Delta_Gap / Delta_HCO3
Default Result Unit: ratio
Allowable Result Units: fraction  ratio  %  
 
Variable: Na
LOINC: 2951-2 : mmol/L : 2947-0 : mEq/L : 32340-2 : mEq/L : 39791-9 : mEq/L
Default Unit: mEq/L_Na
Allowable Units: mEq/L_Na  mmol/L_Na  
Minimum value: 80 mEq/L_Na
Maximum value: 200 mEq/L_Na
 
Variable: Cl
LOINC: 2075-0 : mEq/L : 2069-3 : mEq/L : 41649-5 : mEq/L : 32307-1 : mEq/L
Default Unit: mEq/L_Cl
Allowable Units: mEq/L_Cl  mmol/L_Cl  
Minimum value: 60 mEq/L_Cl
Maximum value: 180 mEq/L_Cl
 
Variable: HCO3
LOINC: 1959-6 : mEq/L : 1960-4 : mEq/L : 14627-4 : mEq/L : 1961-2 : mEq/L : 22735-5 : mEq/L : 1963-8 : mEq/L
Default Unit: mEq/L_HCO3
Allowable Units: mEq/L_HCO3  mmol/L_HCO3  
Maximum value: 30 mEq/L_HCO3
 
Variable: Baseline_Gap
Default Unit: mEq/L_BaseAG
Allowable Units: mEq/L_BaseAG  mmol/L_BaseAG  
Maximum value: 50 mEq/L_BaseAG
 
 


 
Online calculator: Anion Gap in Hypoalbumin States
Source file: AnionGapHypoAlb.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes E44.0 Moderate protein-calorie malnutrition; E44.1 Mild protein-calorie malnutrition; E46 Unspecified protein-calorie malnutrition; P74.0 Late metabolic acidosis of newborn; E87.2 Acidosis
Associated ICD9-CM codes 276.2 Acidosis; 775.7 Late metab acidosis nb; 263.9 Protein-cal malnutr nos; V77.2 Screen for malnutrition; 263.1 Malnutrition mild degree; 263.0 Malnutrition mod degree

 
Equation: Anion_Gap = Na - Cl - HCO3
LOINC of Result: 10466-1 : mEq/L : 33037-3 : mEq/L
Default Result Unit: mEq/L
Allowable Result Units: mEq/L  
 
Equation: Adjusted_Gap = Anion_Gap + 2.5 * (Normal_Alb - Observed_Alb)
Default Result Unit: mEq/L
Allowable Result Units: mEq/L  
 
Variable: Na
LOINC: 2951-2 : mmol/L : 2947-0 : mEq/L : 32340-2 : mEq/L : 39791-9 : mEq/L
Default Unit: mEq/L_Na
Allowable Units: mEq/L_Na  mmol/L_Na  
 
Variable: Cl
LOINC: 2075-0 : mEq/L : 2069-3 : mEq/L : 41649-5 : mEq/L : 32307-1 : mEq/L
Default Unit: mEq/L_Cl
Allowable Units: mEq/L_Cl  mmol/L_Cl  
 
Variable: HCO3
LOINC: 1959-6 : mEq/L : 1960-4 : mEq/L : 14627-4 : mEq/L : 1961-2 : mEq/L : 22735-5 : mEq/L : 1963-8 : mEq/L
Default Unit: mEq/L_HCO3
Allowable Units: mEq/L_HCO3  mmol/L_HCO3  
 
Variable: Normal_Alb
Default Unit: g/dL_Alb
Allowable Units: g/dL_Alb  g/L_Alb  gm/dL_Alb  gm/L_Alb  mg/dL_Alb  mg/L_Alb  
Default value: 4.4 g/dL_Alb
Maximum value: 20 g/dL_Alb
 
Variable: Observed_Alb
LOINC: 1751-7 : g/dL
Default Unit: g/dL_Alb
Allowable Units: g/dL_Alb  g/L_Alb  gm/dL_Alb  gm/L_Alb  mg/dL_Alb  mg/L_Alb  
Maximum value: 20 g/dL_Alb
 
 


 
Online calculator: Anion Gap
Source file: AnionGap.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes P74.0 Late metabolic acidosis of newborn; E87.2 Acidosis
Associated ICD9-CM codes 276.2 Acidosis; 775.7 Late metab acidosis nb

 
Equation: AG = Na - (Cl + HCO3)
LOINC of Result: 10466-1 : mEq/L : 33037-3 : mEq/L
Default Result Unit: mEq/L_AG
Allowable Result Units: mEq/L_AG  mmol/L_AG  
 
Variable: Na
LOINC: 2951-2 : mmol/L : 2947-0 : mEq/L : 32340-2 : mEq/L : 39791-9 : mEq/L
Default Unit: mEq/L_Na
Allowable Units: mEq/L_Na  mmol/L_Na  
Minimum value: 80 mEq/L_Na
Maximum value: 200 mEq/L_Na
 
Variable: Cl
LOINC: 2075-0 : mEq/L : 2069-3 : mEq/L : 41649-5 : mEq/L : 32307-1 : mEq/L
Default Unit: mEq/L_Cl
Allowable Units: mEq/L_Cl  mmol/L_Cl  
Minimum value: 60 mEq/L_Cl
Maximum value: 180 mEq/L_Cl
 
Variable: HCO3
LOINC: 1959-6 : mEq/L : 1960-4 : mEq/L : 14627-4 : mEq/L : 1961-2 : mEq/L : 22735-5 : mEq/L : 1963-8 : mEq/L
Default Unit: mEq/L_HCO3
Allowable Units: mEq/L_HCO3  mmol/L_HCO3  
 
 


 
Online calculator: APACHE II Scoring System by Diagnosis
Source file: ApacheScoreDx.cc
EBMcalc Version: 8.7
Associated ICD10-CM codes J96.90 Respiratory failure, unspecified, unspecified whether with hypoxia or hypercapnia; J96.00 Acute respiratory failure, unspecified whether with hypoxia or hypercapnia; A41.9 Sepsis, unspecified organism; I50.9 Heart failure, unspecified; I50.9 Heart failure, unspecified; N19 Unspecified kidney failure
Associated ICD9-CM codes 584.9 Acute renal failure nos; 586 Renal failure nos; 428.9 Heart failure nos; 038.9 Septicemia nos; 518.81 Acute respiratry failure

 
Equation: Score = Temp + MAP + HR + RR + A_aPO2 + pH_CO2 + Na + K + Creat + HCT + WBC + 15 - Glasgow + Age + Chronic_Dx
Default Result Unit: score
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Log_OR = -3.517 + (Score * 0.146) + Emerg_Surg + Admit_Dx
Default Result Unit: number
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Odds_Ratio = eTo(Log_OR)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Mortality = 100 * Odds_Ratio / ( 1 + Odds_Ratio )
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Radio Button Variable: Emerg_Surg
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 0.603
 
Variable: Glasgow~GlasgowComaScale.cc~cctotal
Default value: 15
Maximum value: 15
 
 


 
Online calculator: APACHE II Scoring System
Source file: ApacheScore.cc
EBMcalc Version: 8.7
Associated ICD10-CM codes J96.90 Respiratory failure, unspecified, unspecified whether with hypoxia or hypercapnia; J96.00 Acute respiratory failure, unspecified whether with hypoxia or hypercapnia; A41.9 Sepsis, unspecified organism; I50.9 Heart failure, unspecified; I50.9 Heart failure, unspecified; N19 Unspecified kidney failure
Associated ICD9-CM codes 584.9 Acute renal failure nos; 586 Renal failure nos; 428.9 Heart failure nos; 038.9 Septicemia nos; 518.81 Acute respiratry failure

 
Equation: Apache_Score = Rectal_Temp + MAP + HR + RR + Aa_Gradient_or_PO2 + pH_or_HCO3 + Na + K + Creat + Hct + WBC + Glasgow + Age + Chronic_Dx
Default Result Unit: points
Allowable Result Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Ascites Albumin Gradient
Source file: AscitesAlbGradient.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes K71.51 Toxic liver disease with chronic active hepatitis with ascites; R18.8 Other ascites; R18.0 Malignant ascites; K70.11 Alcoholic hepatitis with ascites; K70.31 Alcoholic cirrhosis of liver with ascites; K65.9 Peritonitis, unspecified; K74.69 Other cirrhosis of liver; K74.60 Unspecified cirrhosis of liver; K74.0 Hepatic fibrosis
Associated ICD9-CM codes 789.5 Ascites; 571.5 Cirrhosis of liver nos; 567.9 Peritonitis nos

 
Equation: SAAG = Serum_Albumin - Ascites_Albumin
LOINC of Result: 63549-0 : g/dL
Default Result Unit: g/dL_Alb
Allowable Result Units: g/dL_Alb  g/L_Alb  gm/dL_Alb  gm/L_Alb  mg/dL_Alb  mg/L_Alb  
 
Variable: Serum_Albumin
LOINC: 1751-7 : g/dL
Default Unit: g/dL_Alb
Allowable Units: g/dL_Alb  g/L_Alb  gm/dL_Alb  gm/L_Alb  mg/dL_Alb  mg/L_Alb  
 
Variable: Ascites_Albumin
LOINC: 1749-1 : g/dL
Default Unit: g/dL_Alb
Allowable Units: g/dL_Alb  g/L_Alb  gm/dL_Alb  gm/L_Alb  mg/dL_Alb  mg/L_Alb  
 
 


 
  B

 
Online calculator: BAP-65 prediction of in-hospital mortality and need for mechanical ventilation in COPD
Source file: BAP65.cc
EBMcalc Version: 12.4
Associated ICD10-CM codes J44.9 Chronic obstructive pulmonary disease, unspecified; J44.0 Chronic obstructive pulmonary disease with acute lower respiratory infection; J44.1 Chronic obstructive pulmonary disease with (acute) exacerbation
Associated ICD9-CM codes 492.8 Emphysema nec; 492 Emphysema; 491.1 Mucopurul chr bronchitis; 491.0 Simple chr bronchitis; 491.2 Obstruct chr bronchitis; 491.20 Obst chr bronch w/o exac

 
Equation: BAP65_Class = BAP65_Class
 
 


 
Online calculator: Basal Energy Expenditure (Harris-Benedict estimation)
Source file: HarrisBenedict.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes Z13.89 Encounter for screening for other disorder; E66.9 Obesity, unspecified; E66.01 Morbid (severe) obesity due to excess calories; Z13.21 Encounter for screening for nutritional disorder; E46 Unspecified protein-calorie malnutrition
Associated ICD9-CM codes 263.9 Protein-cal malnutr nos; V77.2 Screen for malnutrition; 278.01 Morbid obesity; 278.00 Obesity nos; V77.8 Screening for obesity

 
Equation: BEE_Females = 655.1 + (9.563 * Weight) + (1.85 * Height) - (4.676 * Age)
Default Result Unit: kcal/day
Allowable Result Units: kcal/day  
 
Equation: BEE_Males = 66.5 + (13.75 * Weight) + (5.003 * Height) - (6.775 * Age)
Default Result Unit: kcal/day
Allowable Result Units: kcal/day  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: cm  m  in  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
 


 
Online calculator: Base Excess Determination
Source file: BaseExcess.eq
EBMcalc Version: 11.1
Associated ICD10-CM codes E87.3 Alkalosis; E87.2 Acidosis
Associated ICD9-CM codes 276.2 Acidosis; 276.3 Alkalosis

 
Equation: Base_Excess = (0.93 * HCO3) + (14.84 * (pH - 7.4)) - 24.4
Default Result Unit: mEq/L
Allowable Result Units: mEq/L  
 
Variable: HCO3
LOINC: 1959-6 : mEq/L : 1960-4 : mEq/L : 14627-4 : mEq/L : 1961-2 : mEq/L : 22735-5 : mEq/L : 1963-8 : mEq/L
Default Unit: mEq/L_HCO3
Allowable Units: mEq/L_HCO3  mmol/L_HCO3  
 
Variable: pH
LOINC: 11558-4 : units : 2753-2 : units : 2744-1 : units : 2745-8 : units : 2746-6 : units
Default Unit: units_pH
Allowable Units: units_pH    pH  
 
 


 
Online calculator: Bayesian Statistics I MultiCalc
Source file: BayesianAnalysis_1.eq
EBMcalc Version: 8.7

 
Equation: True_Pos = Sensitivity * Prevalence
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: False_Pos = (1 - Specificity) * (1 - Prevalence)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: True_Neg = Specificity * (1 - Prevalence)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: False_Neg = (1 - Sensitivity) * Prevalence
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Pos_Pred_Value = 100 * True_Pos / (True_Pos + False_Pos)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Neg_Pred_Value = 100 * True_Neg / (True_Neg + False_Neg)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: LR_Pos = Sensitivity / (1-Specificity)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: LR_Neg = (1-Sensitivity) / Specificity
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Pre_Test_Odds = Prevalence / (1 - Prevalence)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Post_Odds_Pos = Pre_Test_Odds * LR_Pos
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Post_Prob_Pos = Post_Odds_Pos / (1 + Post_Odds_Pos)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Post_Odds_Neg = Pre_Test_Odds * LR_Neg
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Post_Prob_Neg = Post_Odds_Neg / (1 + Post_Odds_Neg)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: False_Pos_Rate = 100 * False_Pos / (False_Pos + True_Neg)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: False_Neg_Rate = 100 * False_Neg / (True_Pos + False_Neg)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Overall_Acc = 100 * (True_Pos + True_Neg)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Prevalence
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
Variable: Sensitivity
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
Variable: Specificity
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
 


 
Online calculator: Bayesian Statistics II MultiCalc
Source file: BayesianAnalysis_2.eq
EBMcalc Version: 8.7

 
Equation: Sensitivity = True_Pos / (True_Pos + False_Neg)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Specificity = True_Neg / (True_Neg + False_Pos)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Prevalence = (True_Pos + False_Neg) / (True_Pos + True_Neg + False_Pos + False_Neg)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Pos_Pred_Value = 100 * True_Pos / (True_Pos + False_Pos)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Neg_Pred_Value = 100 * True_Neg / (True_Neg + False_Neg)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: LR_Pos = Sensitivity / (1-Specificity)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: LR_Neg = (1-Sensitivity) / Specificity
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Pre_Test_Odds = Prevalence / (1 - Prevalence)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Post_Odds_Pos = Pre_Test_Odds * LR_Pos
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Post_Prob_Pos = Post_Odds_Pos / (1 + Post_Odds_Pos)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Post_Odds_Neg = Pre_Test_Odds * LR_Neg
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Post_Prob_Neg = Post_Odds_Neg / (1 + Post_Odds_Neg)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: False_Pos_Rate = 100 * False_Pos / (False_Pos + True_Neg)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: False_Neg_Rate = 100 * False_Neg / (True_Pos + False_Neg)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Overall_Acc = 100 * (True_Pos + True_Neg) / (True_Pos + True_Neg + False_Pos + False_Neg)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: True_Pos
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: False_Pos
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: True_Neg
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: False_Neg
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Benefit Increase / Number Needed to Treat Multicalc
Source file: BenefitIncrease.eq
EBMcalc Version: 8.7

 
Equation: Abs_Benefit_Increase = Control_Event_Rate - Exp_Event_Rate
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Rel_Benefit_Increase = Abs_Benefit_Increase / Control_Event_Rate
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: NNT = 1 / Abs_Benefit_Increase
Default Result Unit: #
Allowable Result Units: none  index  #  number  logit  score  points  
 
Variable: Control_Event_Rate
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: Exp_Event_Rate
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
 
 


 
Online calculator: Bicarbonate Deficit
Source file: BicarbDef.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes E87.2 Acidosis
Associated ICD9-CM codes 276.2 Acidosis

 
Equation: BicarbDef = 0.4 * Weight * (24 - HCO3)
Default Result Unit: mEq
Allowable Result Units: mEq  eq  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
Variable: HCO3
LOINC: 1959-6 : mEq/L : 1960-4 : mEq/L : 14627-4 : mEq/L : 1961-2 : mEq/L : 22735-5 : mEq/L : 1963-8 : mEq/L
Default Unit: mEq/L
Allowable Units: mEq/L  
 
 


 
Online calculator: Blood Ethanol Concentration Estimation
Source file: BloodEthanolConc.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes T51.8X2A Toxic effect of other alcohols, intentional self-harm, initial encounter; F10.10 Alcohol abuse, uncomplicated; F10.20 Alcohol dependence, uncomplicated
Associated ICD9-CM codes 303.01 Ac alcohol intox-contin; 303.02 Ac alcohol intox-episod; 303.00 Ac alcohol intox-unspec; E860.0 Acc poisn-alcohol bevrag; E860.0 Acc poison-alcohol nos; 303.90 Alcoh dep nec/nos-unspec; 305.02 Alcohol abuse-episodic; 305.00 Alcohol abuse-unspec; 980.8 Toxic effect alcohol nec; 980.9 Toxic effect alcohol nos

 
Equation: Blood_Ethanol_Concentration = (Volume_Ingested * Concentration_Ingested * 0.8) / (Weight * 0.6)
Default Result Unit: mg/dL_ETOH
Allowable Result Units: mmol/L_ETOH  mg/dL_ETOH  
 
Variable: Volume_Ingested
Default Unit: mL
Allowable Units: mL  quart (UK)  L  quart (US)  pint (UK)  pint (US)  ounce (US)  ounce (UK)  cL  tablespoon (metric)  tablespoon (US)  teaspoon (metric)  teaspoon (US)  
 
Variable: Concentration_Ingested
Default Unit: Percent Ethanol
Allowable Units: Percent Ethanol  Proof (U.S.)  Proof (U.K./Australia)  
Maximum value: 100 Percent Ethanol
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
 
 


 
Online calculator: Blood Pressure Percentiles for Boys (2 - 17 years)
Source file: BloodPressurePercentBoys.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes I10 Essential (primary) hypertension
Associated ICD9-CM codes 401.1 Benign hypertension; 401.9 Hypertension nos

 
Equation: Age_Months = Age * 12
 
Equation: Height_Z = (power((Height / M), L) - 1) / (L * S)
 
Equation: Height_Percentile = ZtoPercentile(Height_Z)
 
Equation: Age_Factor = Age - 10
 
Equation: Systolic_BP_Avg = 102.19768 + (1.82416 * Age_Factor) + (0.12776 * power(Age_Factor,2)) + (0.00249 * power(Age_Factor,3)) - (0.00135 * power(Age_Factor,4)) + (2.73157 * Height_Z) - (0.19618 * power(Height_Z,2)) - (0.04659 * power(Height_Z,3)) + (0.00947 * power(Height_Z,4))
 
Equation: Diastolic_BP_Avg = 61.01217 + (0.68314 * Age_Factor) - (0.09835 * power(Age_Factor,2)) + (0.01711 * power(Age_Factor,3)) + (0.00045 * power(Age_Factor,4)) + (1.46993 * Height_Z) - (0.07849 * power(Height_Z,2)) - (0.03144 * power(Height_Z,3)) + (0.00967 * power(Height_Z,4))
 
Equation: Systolic_BP_Z = (Systolic_BP - Systolic_BP_Avg) / 10.7128
 
Equation: Diastolic_BP_Z = (Diastolic_BP - Diastolic_BP_Avg) / 11.6032
 
Equation: Systolic_BP_Percentile = ZtoPercentile(Systolic_BP_Z)
LOINC of Result: 72165-4 : %
 
Equation: Diastolic_BP_Percentile = ZtoPercentile(Diastolic_BP_Z)
LOINC of Result: 72164-7 : %
 
Equation: SBP_Threshold = (2.326348 * 10.7128) + Systolic_BP_Avg + 5
 
Equation: DBP_Threshold = (2.326348 * 11.6032) + Diastolic_BP_Avg + 5
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 2 yr
Maximum value: 17.99 yr
 
 


 
Online calculator: Blood Pressure Percentiles for Girls (2 - 17 years)
Source file: BloodPressurePercentGirls.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes I10 Essential (primary) hypertension
Associated ICD9-CM codes 401.1 Benign hypertension; 401.9 Hypertension nos

 
Equation: Age_Months = Age * 12
 
Equation: Height_Z = (power((Height / M), L) - 1) / (L * S)
 
Equation: Height_Percentile = ZtoPercentile(Height_Z)
 
Equation: Age_Factor = Age - 10
 
Equation: Systolic_BP_Avg = 102.01027 + (1.94397 * Age_Factor) + (0.00598 * power(Age_Factor,2)) - (0.00789 * power(Age_Factor,3)) - (0.00059 * power(Age_Factor,4)) + (2.03526 * Height_Z) + (0.02534 * power(Height_Z,2)) - (0.01884 * power(Height_Z,3)) + (0.00121 * power(Height_Z,4))
 
Equation: Diastolic_BP_Avg = 60.50510 + (1.01301 * Age_Factor) + (0.01157 * power(Age_Factor,2)) + (0.00424 * power(Age_Factor,3)) - (0.00137 * power(Age_Factor,4)) + (1.16641 * Height_Z) + (0.12795 * power(Height_Z,2)) - (0.03869 * power(Height_Z,3)) - (0.00079 * power(Height_Z,4))
 
Equation: Systolic_BP_Z = (Systolic_BP - Systolic_BP_Avg) / 10.4855
 
Equation: Diastolic_BP_Z = (Diastolic_BP - Diastolic_BP_Avg) / 10.9573
 
Equation: Systolic_BP_Percentile = ZtoPercentile(Systolic_BP_Z)
LOINC of Result: 72165-4 : %
 
Equation: Diastolic_BP_Percentile = ZtoPercentile(Diastolic_BP_Z)
LOINC of Result: 72164-7 : %
 
Equation: SBP_Threshold = (2.326348 * 10.4855) + Systolic_BP_Avg + 5
 
Equation: DBP_Threshold = (2.326348 * 10.9573) + Diastolic_BP_Avg + 5
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 2 yr
Maximum value: 17.99 yr
 
 


 
Online calculator: Body Mass Index (BMI) percentiles for boys (2 to 20 years)
Source file: BodyMassIndexBoys.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes R63.6 Underweight; R63.5 Abnormal weight gain; R63.4 Abnormal weight loss; Z13.89 Encounter for screening for other disorder; E66.9 Obesity, unspecified; E66.01 Morbid (severe) obesity due to excess calories
Associated ICD9-CM codes 278.01 Morbid obesity; 278.00 Obesity nos; V77.8 Screening for obesity; 783.21 Abnormal loss of weight; 783.1 Abnormal weight gain; 783.22 Underweight

 
Equation: BMI = Weight / power((Height / 100),2)
LOINC of Result: 39156-5 : kg/m^2 : 59576-9 : kg/m^2
Default Result Unit: kg/m2
Allowable Result Units:
 
Equation: Age_Months = Age * 12
 
Equation: Z_Score = (power((BMI / M), L) - 1) / (L * S)
 
Equation: Percentile = ZtoPercentile(Z_Score)
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 2 yr
Maximum value: 19.99 yr
 
 


 
Online calculator: Body Mass Index (BMI) percentiles for girls (2 to 20 years)
Source file: BodyMassIndexGirls.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes R63.6 Underweight; R63.5 Abnormal weight gain; R63.4 Abnormal weight loss; Z13.89 Encounter for screening for other disorder; E66.9 Obesity, unspecified; E66.01 Morbid (severe) obesity due to excess calories
Associated ICD9-CM codes 278.01 Morbid obesity; 278.00 Obesity nos; V77.8 Screening for obesity; 783.21 Abnormal loss of weight; 783.1 Abnormal weight gain; 783.22 Underweight

 
Equation: Age_Months = Age * 12
 
Equation: BMI = Weight / power((Height / 100), 2)
LOINC of Result: 39156-5 : kg/m^2 : 59576-9 : kg/m^2
Default Result Unit: kg/m2
Allowable Result Units:
 
Equation: Z_Score = (power((BMI / M), L) - 1) / (L * S)
 
Equation: Percentile = ZtoPercentile(Z_Score)
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 2 yr
Maximum value: 19.99 yr
 
 


 
Online calculator: Body Mass Index (Quetelet's index)
Source file: BodyMassIndex.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes R63.6 Underweight; R63.5 Abnormal weight gain; R63.4 Abnormal weight loss; Z13.89 Encounter for screening for other disorder; E66.9 Obesity, unspecified; E66.01 Morbid (severe) obesity due to excess calories
Associated ICD9-CM codes 278.01 Morbid obesity; 278.00 Obesity nos; V77.8 Screening for obesity; 783.21 Abnormal loss of weight; 783.1 Abnormal weight gain; 783.22 Underweight

 
Equation: BMI = (Weight/2.205) / power((Height/39.37), 2)
LOINC of Result: 39156-5 : kg/m^2 : 59576-9 : kg/m^2
Default Result Unit: kg/m2
Allowable Result Units:
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: in
Allowable Units: cm  m  in  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: lb
Allowable Units: kg  lb  
 
 


 
Online calculator: Body Surface Area (BSA, Du Bois Method)
Source file: BodySurfaceArea.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes R63.6 Underweight; R63.5 Abnormal weight gain; R63.4 Abnormal weight loss; Z13.89 Encounter for screening for other disorder; E66.9 Obesity, unspecified; E66.01 Morbid (severe) obesity due to excess calories
Associated ICD9-CM codes 278.01 Morbid obesity; 278.00 Obesity nos; V77.8 Screening for obesity; 783.21 Abnormal loss of weight; 783.1 Abnormal weight gain; 783.22 Underweight

 
Equation: BSA = 0.007184 * power(Height, 0.725) * power(Weight, 0.425)
Default Result Unit: sqm
Allowable Result Units: sqrcm  cm^2  sqcm  sqrm  sqm  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
 


 
Online calculator: Body Surface Area (BSA, Gehan and George Method)
Source file: BodySurfaceAreaGG.eq
EBMcalc Version: 11.2
Associated ICD10-CM codes R63.6 Underweight; R63.5 Abnormal weight gain; R63.4 Abnormal weight loss; Z13.89 Encounter for screening for other disorder; E66.9 Obesity, unspecified; E66.01 Morbid (severe) obesity due to excess calories
Associated ICD9-CM codes 278.01 Morbid obesity; 278.00 Obesity nos; V77.8 Screening for obesity; 783.21 Abnormal loss of weight; 783.1 Abnormal weight gain; 783.22 Underweight

 
Equation: BSA = 0.0235 * power(Height, 0.42246) * power(Weight, 0.51456)
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
 


 
Online calculator: Body Surface Area (BSA, Mosteller, square root method)
Source file: BodySurfaceArea_SR.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes R63.6 Underweight; R63.5 Abnormal weight gain; R63.4 Abnormal weight loss; Z13.89 Encounter for screening for other disorder; E66.9 Obesity, unspecified; E66.01 Morbid (severe) obesity due to excess calories
Associated ICD9-CM codes 278.01 Morbid obesity; 278.00 Obesity nos; V77.8 Screening for obesity; 783.21 Abnormal loss of weight; 783.1 Abnormal weight gain; 783.22 Underweight

 
Equation: BSA = sqr(Height * Weight / 3600)
Default Result Unit: sqm
Allowable Result Units: sqrcm  cm^2  sqcm  sqrm  sqm  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
 


 
Online calculator: Body Surface Area Based Dosing
Source file: BSABasedDosing.eq
EBMcalc Version: 8.7

 
Equation: BSA_Dubois = 0.007184 * power(Height, 0.725) * power(Weight, 0.425)
Default Result Unit: m(2)
Allowable Result Units: m(2)  
 
Equation: BSA_Mosteller = sqr(Height * Weight / 3600)
Default Result Unit: m(2)
Allowable Result Units: m(2)  
 
Equation: Dose = Selected_BSA * BSA_Based_Dose
Default Result Unit: mg
Allowable Result Units: mcg  mg  gm  
 
Variable: BSA_Based_Dose
Default Unit: mg/m(2)
Allowable Units: mg/m(2)  g/m(2)  mcg/m(2)  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: cm  m  in  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
 
Radio Button Variable: BSA_Formula
Discrete variable option: *Dubois Variable value: 1
Discrete variable option: Mosteller Variable value: 2
 
 


 
Online calculator: Burn Injury Fluid Resuscitation (Brooke estimate)
Source file: BurnInjuryFluidBrooke.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes T30.0 Burn of unspecified body region, unspecified degree
Associated ICD9-CM codes 949.0 Burn nos

 
Equation: Lactated_Ringers = 1.5 * Weight * Percent_Burn / 24
Default Result Unit: mL/hr
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Equation: Colloid = 0.5 * Weight * Percent_Burn / 24
Default Result Unit: mL/hr
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Equation: D5W = 2000 / 24
Default Result Unit: mL/hr
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
Variable: Percent_Burn
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
Minimum value: 1 %
Maximum value: 100 %
 
 


 
Online calculator: Burn Injury Fluid Resuscitation (Demling dextran estimate)
Source file: BurnInjuryFluidDextran.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes T30.0 Burn of unspecified body region, unspecified degree
Associated ICD9-CM codes 949.0 Burn nos

 
Equation: Dextran40_in_Saline = 2 * Weight
Default Result Unit: mL/hr
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Equation: Fresh_Frozen_Plasma = 0.5 * Weight
Default Result Unit: mL/hr
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
 


 
Online calculator: Burn Injury Fluid Resuscitation (Evans estimate)
Source file: BurnInjuryFluidEvans.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes T30.0 Burn of unspecified body region, unspecified degree
Associated ICD9-CM codes 949.0 Burn nos

 
Equation: Normal_Saline = Weight * Percent_Burn / 24
Default Result Unit: mL/hr
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Equation: Colloid = Weight * Percent_Burn / 24
Default Result Unit: mL/hr
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Equation: D5W = 2000 / 24
Default Result Unit: mL/hr
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
Variable: Percent_Burn
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
Minimum value: 1 %
Maximum value: 100 %
 
 


 
Online calculator: Burn Injury Fluid Resuscitation (Modified Brooke crystalloid estimate)
Source file: BurnInjuryFluidModifiedBrooke.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes T30.0 Burn of unspecified body region, unspecified degree
Associated ICD9-CM codes 949.0 Burn nos

 
Equation: Lactated_Ringers = 2 * Weight * Percent_Burn / 24
Default Result Unit: mL/hr
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
Variable: Percent_Burn
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
Minimum value: 1 %
Maximum value: 100 %
 
 


 
Online calculator: Burn Injury Fluid Resuscitation (Slater estimate)
Source file: BurnInjuryFluidSlater.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes T30.0 Burn of unspecified body region, unspecified degree
Associated ICD9-CM codes 949.0 Burn nos

 
Equation: Lactated_Ringers = 2000 / 24
Default Result Unit: mL/hr
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Equation: Fresh_Frozen_Plasma = 75 * Weight / 36
Default Result Unit: mL/hr
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
 


 
Online calculator: Burn Injury Fluid Resuscitation, Adult (Parkland crystalloid estimate)
Source file: BurnInjuryFluidParkland.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes T30.0 Burn of unspecified body region, unspecified degree
Associated ICD9-CM codes 949.0 Burn nos

 
Equation: Total_Crystalloid_For_First_24_Hours = 4 * Weight * Percent_Nonsuperficial_Burn_Area
Default Result Unit: mL
Allowable Result Units: mL  L  
 
Equation: Rate_First_8_Hours = Total_Crystalloid_For_First_24_Hours / 16
Default Result Unit: mL/hr
Allowable Result Units: mL/hr  mL/min  L/hr  
 
Equation: Rate_Next_16_Hours = Total_Crystalloid_For_First_24_Hours / 32
Default Result Unit: mL/hr
Allowable Result Units: mL/hr  mL/min  L/hr  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
 
Variable: Percent_Nonsuperficial_Burn_Area
Default Unit: %
Allowable Units: fraction  ratio  %  
Minimum value: 1 %
Maximum value: 100 %
 
 


 
  C

 
Online calculator: Calcium Correction in Hypoalbuminemia (SI units)
Source file: CalciumAlbumin_SI.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes E83.51 Hypocalcemia; E83.52 Hypercalcemia; Z13.21 Encounter for screening for nutritional disorder; E46 Unspecified protein-calorie malnutrition
Associated ICD9-CM codes 275.41 Hypocalcemia; 275.42 Hypercalcemia; 263.9 Protein-cal malnutr nos; V77.2 Screen for malnutrition

 
Equation: Ca = Serum_Ca + 0.02 * (Normal_Albumin - Patient_Albumin)
LOINC of Result: 17861-6 : mg/dL : 38250-7 : mg/dL : 2000-8 : mmol/L
Default Result Unit: mmol/L_Ca
Allowable Result Units: mg/dL_Ca  mmol/L_Ca  
 
Variable: Serum_Ca
LOINC: 17861-6 : mg/dL : 38250-7 : mg/dL : 2000-8 : mmol/L
Default Unit: mmol/L_Ca
Allowable Units: mg/dL_Ca  mmol/L_Ca  
 
Radio Button Variable: Normal_Albumin
Discrete variable option: 40 g/L Variable value: 40
Discrete variable option: 44 g/L Variable value: 44
 
Variable: Patient_Albumin
LOINC: 1751-7 : g/dL
Default Unit: g/L_Alb
Allowable Units: g/dL_Alb  g/L_Alb  gm/dL_Alb  gm/L_Alb  mg/dL_Alb  mg/L_Alb  
 
 


 
Online calculator: Calcium Correction in Hypoalbuminemia
Source file: CalciumAlbumin.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes E83.51 Hypocalcemia; E83.52 Hypercalcemia; Z13.21 Encounter for screening for nutritional disorder; E46 Unspecified protein-calorie malnutrition
Associated ICD9-CM codes 275.41 Hypocalcemia; 275.42 Hypercalcemia; 263.9 Protein-cal malnutr nos; V77.2 Screen for malnutrition

 
Equation: Ca = Serum_Ca + 0.8 * (Normal_Albumin - Patient_Albumin)
LOINC of Result: 17861-6 : mg/dL : 38250-7 : mg/dL : 2000-8 : mmol/L
Default Result Unit: mg/dL_Ca
Allowable Result Units: mg/dL_Ca  mmol/L_Ca  
 
Variable: Serum_Ca
LOINC: 17861-6 : mg/dL : 38250-7 : mg/dL : 2000-8 : mmol/L
Default Unit: mg/dL_Ca
Allowable Units: mg/dL_Ca  mmol/L_Ca  
 
Radio Button Variable: Normal_Albumin
Discrete variable option: 4 g/dL Variable value: 4
Discrete variable option: 4.4 g/dL Variable value: 4.4
 
Variable: Patient_Albumin
LOINC: 1751-7 : g/dL
Default Unit: g/dL_Alb
Allowable Units: g/dL_Alb  g/L_Alb  gm/dL_Alb  gm/L_Alb  mg/dL_Alb  mg/L_Alb  
 
 


 
Online calculator: Calorie Requirements for Weight Maintenance and Weight Loss in Men (Patient information)
Source file: CalorieCount_M.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z13.21 Encounter for screening for nutritional disorder; E46 Unspecified protein-calorie malnutrition; E44.0 Moderate protein-calorie malnutrition; E44.1 Mild protein-calorie malnutrition; Z13.89 Encounter for screening for other disorder; E66.9 Obesity, unspecified; E66.01 Morbid (severe) obesity due to excess calories
Associated ICD9-CM codes 278.01 Morbid obesity; 278.00 Obesity nos; V77.8 Screening for obesity; 263.1 Malnutrition mild degree; 263.0 Malnutrition mod degree; 263.8 Protein-cal malnutr nec; 263.9 Protein-cal malnutr nos; V77.2 Screen for malnutrition

 
Equation: For_Weight_Maintenance = Enter_your_current_weight * Activity_Level / 2.2
Default Result Unit: Calories Per Day
Allowable Result Units:
 
Equation: For_Weight_Loss = For_Weight_Maintenance - 500
Default Result Unit: Calories Per Day
Allowable Result Units:
 
Variable: Enter_your_current_weight
Default Unit: lb
Allowable Units: kg  lb  
 
Radio Button Variable: Activity_Level
Discrete variable option: Sedentary: Daily activity (bathing, doing laundry, etc.). No deliberate exercise. Variable value: 31
Discrete variable option: Light activity: Daily activity, plus walking around the house or office (approx. 4,000 steps) or light housework (cooking, cleaning.) Variable value: 38
Discrete variable option: Moderate activity: Daily activity, plus fast walking, water aerobics, Pilates, or the equivalent 3 to 5 days a week. Variable value: 41
Discrete variable option: Heavy activity: Daily activity, plus moderate to vigorous activity most days of the week (such as running, tennis, basketball, squash.) Variable value: 50
Discrete variable option: Exceptional activity: Daily activity, plus rigorous training most days of the week (such as professional sports, marathons, etc.) Variable value: 58
 
 


 
Online calculator: Calorie Requirements for Weight Maintenance and Weight Loss in Women (Patient information)
Source file: CalorieCount_F.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z13.21 Encounter for screening for nutritional disorder; E46 Unspecified protein-calorie malnutrition; E44.0 Moderate protein-calorie malnutrition; E44.1 Mild protein-calorie malnutrition; Z13.89 Encounter for screening for other disorder; E66.9 Obesity, unspecified; E66.01 Morbid (severe) obesity due to excess calories
Associated ICD9-CM codes 278.01 Morbid obesity; 278.00 Obesity nos; V77.8 Screening for obesity; 263.1 Malnutrition mild degree; 263.0 Malnutrition mod degree; 263.8 Protein-cal malnutr nec; 263.9 Protein-cal malnutr nos; V77.2 Screen for malnutrition

 
Equation: For_Weight_Maintenance = Enter_your_current_weight * Activity_Level / 2.2
Default Result Unit: Calories Per Day
Allowable Result Units:
 
Equation: For_Weight_Loss = For_Weight_Maintenance - 500
Default Result Unit: Calories Per Day
Allowable Result Units:
 
Variable: Enter_your_current_weight
Default Unit: lb
Allowable Units: kg  lb  
 
Radio Button Variable: Activity_Level
Discrete variable option: Sedentary: Daily activity (bathing, doing laundry, etc.). No deliberate exercise. Variable value: 30
Discrete variable option: Light activity: Daily activity, plus walking around the house or office (approx. 4,000 steps) or light housework (cooking, cleaning.) Variable value: 35
Discrete variable option: Moderate activity: Daily activity, plus fast walking, water aerobics, Pilates, or the equivalent 3 to 5 days a week. Variable value: 37
Discrete variable option: Heavy activity: Daily activity, plus moderate to vigorous activity most days of the week (such as running, tennis, basketball, squash.) Variable value: 44
Discrete variable option: Exceptional activity: Daily activity, plus rigorous training most days of the week (such as professional sports, marathons, etc.) Variable value: 51
 
 


 
Online calculator: Carbon Dioxide Production
Source file: CO2Prod.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes E88.9 Metabolic disorder, unspecified
Associated ICD9-CM codes 277.9 Metabolism disorder nos; 277.8 Metabolism disorder nec

 
Equation: VCO2 = VExp * ( FECO2 - FICO2 )
Default Result Unit: mL/min
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: VExp
Default Unit: mL/min
Allowable Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: FECO2
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: FICO2
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
 
 


 
Online calculator: Carboplatin AUC Dose Calculation (Calvert formula)
Source file: AUCCarboplat.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z51.11 Encounter for antineoplastic chemotherapy
Associated ICD9-CM codes V58.1 Chemotherapy encounter

 
Equation: GFR = Sex * ((140 - Age) / (Serum_Creat)) * (Weight / 72)
LOINC of Result: 33914-3 : mL/min/1.73sqM : 33914-3 : mL/min/1.73 m2 : 33914-3 : mL/min/1.73 m^2 : 69405-9 : mL/min/1.73sqM : 69405-9 : mL/min/1.73 m2 : 69405-9 : mL/min/1.73 m^2
Default Result Unit: mL/min
Allowable Result Units: mL/hr  mL/min  L/hr  
 
Equation: Carboplatin_Dose = Target_AUC * (GFR + 25)
Default Result Unit: mg
Allowable Result Units: mcg  mg  gm  
 
Variable: Target_AUC
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0.85
Discrete variable option: Male Variable value: 1
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
 
 


 
Online calculator: Cardiac Output MultiCalc
Source file: CardiacOutput_MC.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes I50.1 Left ventricular failure; I50.9 Heart failure, unspecified
Associated ICD9-CM codes 428.0 Chf nos; 428.9 Heart failure nos; 428.1 Left heart failure

 
Equation: Cardiac_Output = O2_Consumption / (Arterial_O2_Content - Venous_O2_Content)
Default Result Unit: L/min
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Equation: Body_Surface_Area = 0.007184 * power(Height, 0.725) * power(Weight, 0.425)
Default Result Unit: sqm
Allowable Result Units: sqrcm  cm^2  sqcm  sqrm  sqm  
 
Equation: Cardiac_Index = Cardiac_Output / Body_Surface_Area
Default Result Unit: index
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Stroke_Volume = 1000 * Cardiac_Output / Heart_Rate
Default Result Unit: mL
Allowable Result Units: fL  mL  L  
 
Equation: Stroke_Index = Stroke_Volume / Body_Surface_Area
Default Result Unit: mL/sqm
Allowable Result Units: mL/sqm  
 
Variable: O2_Consumption
LOINC: 60842-2 : mL/min
Default Unit: mL/min_O2Consump
Allowable Units: mL/min_O2Consump  
 
Variable: Arterial_O2_Content~OxygenContentArterial.eq~CaO2_param
Default Unit: mL/L_CaO2
Allowable Units: mL/L_CaO2  mL/dL_CaO2  
 
Variable: Venous_O2_Content~OxygenContentVenous.eq~CvO2_param
Default Unit: mL/L_CvO2
Allowable Units: mL/L_CvO2  mL/dL_CvO2  
 
Variable: Heart_Rate
LOINC: 8867-4 : beats/min
Default Unit: beats/min
Allowable Units: beats/min  bpm  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
 


 
Online calculator: Cardiac Output Using Oxygen Saturation Data Only
Source file: CardiacOutputSimplified.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes I50.1 Left ventricular failure; I50.9 Heart failure, unspecified
Associated ICD9-CM codes 428.0 Chf nos; 428.9 Heart failure nos; 428.1 Left heart failure

 
Equation: Cardiac_Output = O2_Consumption / (0.139 * Hgb * (SaO2 - SvO2))
Default Result Unit: L/min
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: O2_Consumption
LOINC: 60842-2 : mL/min
Default Unit: mL/min_O2Consump
Allowable Units: mL/min_O2Consump  
 
Variable: Hgb
LOINC: 718-7 : g/dL : 718-7 : gm/dL : 59260-0 : mmol/L
Default Unit: g/dL
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
Variable: SaO2
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: SvO2
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
 


 
Online calculator: Cardiac Output
Source file: CardiacOutput.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes I50.1 Left ventricular failure; I50.9 Heart failure, unspecified
Associated ICD9-CM codes 428.0 Chf nos; 428.9 Heart failure nos; 428.1 Left heart failure

 
Equation: CaO2 = ( Hgb * 13.4 * O2Sat / 100 ) + ( PaO2 * 0.031 )
LOINC of Result: 59274-1 : mL/dL
Default Result Unit: mL/L_CaO2
Allowable Result Units: mL/L_CaO2  mL/dL_CaO2  
 
Equation: CvO2 = ( Hgb * 13.4 * O2vSat / 100 ) + ( PvO2 * 0.031 )
LOINC of Result: 64798-2 : mL/dL
Default Result Unit: mL/L_CvO2
Allowable Result Units: mL/L_CvO2  mL/dL_CvO2  
 
Equation: Cardiac_Output = O2_Consumption / (CaO2 - CvO2)
Default Result Unit: L/min
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: O2_Consumption
LOINC: 60842-2 : mL/min
Default Unit: mL/min_O2Consump
Allowable Units: mL/min_O2Consump  
 
Variable: Hgb
LOINC: 718-7 : g/dL : 718-7 : gm/dL : 59260-0 : mmol/L
Default Unit: g/dL
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
Variable: O2Sat
LOINC: 2713-6 : % : 51733-4 : %
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: PaO2
LOINC: 11556-8 : mmHg : 2703-7 : mmHg : 19254-2 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: O2vSat
LOINC: 51731-8 : %
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: PvO2
LOINC: 2705-2 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
 


 
Online calculator: Cardiovascular Risk Assessment (10-year, ACC/AHA 2013)
Source file: ACCAHA2013.cc
EBMcalc Version: 13.4
Associated ICD10-CM codes I25.84 Coronary atherosclerosis due to calcified coronary lesion; E78.5 Hyperlipidemia, unspecified; E78.4 Other hyperlipidemia; E78.2 Mixed hyperlipidemia; I10 Essential (primary) hypertension; I67.2 Cerebral atherosclerosis
Associated ICD9-CM codes 434.0 Cerebral thrombosis; 437.0 Cerebral atherosclerosis; 401 Essential hypertension; 401.1 Benign hypertension; 272.2 Mixed hyperlipidemia; 272.4 Hyperlipidemia nec/nos; 414.0 Coronary atherosclerosis; 414.4 Coronary atherosclerosis

 
Equation: Terms = (C_Age * ln(Age)) + (C_Sq_Age * sq(ln(Age))) + (C_Total_Chol * ln(Total_Cholesterol)) + (C_Age_Total_Chol * ln(Age) * ln(Total_Cholesterol)) + (C_HDL_Chol * ln(HDL_Cholesterol)) + (C_Age_HDL_Chol * ln(Age) * ln(HDL_Cholesterol)) + (On_Hypertension_Med * C_On_Hypertension_Meds * ln(Systolic_Blood_Pressure)) + (On_Hypertension_Med * C_Age_On_Hypertension_Meds * ln(Age) * ln(Systolic_Blood_Pressure)) + (!On_Hypertension_Med * C_Off_Hypertension_Meds * ln(Systolic_Blood_Pressure)) + (!On_Hypertension_Med * C_Age_Off_Hypertension_Meds * ln(Age) * ln(Systolic_Blood_Pressure)) + (C_Smoker * Smoker) + (C_Age_Smoker * ln(Age) * Smoker) + (C_Diabetes * Diabetes)
Default Result Unit: logit
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Ten_Year_Risk = 100 * (1 - power(S10, eTo(Terms - Mean_Terms)))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Radio Button Variable: Race
Discrete variable option: Black or African American Variable value: 0
Discrete variable option: White Variable value: 1
Discrete variable option: Other (see notes) Variable value: 1
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 20 yr
Maximum value: 79 yr
 
Variable: Total_Cholesterol
LOINC: 2093-3 : mg/dL : 14647-2 : mmol/L
Default Unit: mg/dL_Chol
Allowable Units: mg/dL_Chol  mmol/L_Chol  
Minimum value: 100 mg/dL_Chol
Maximum value: 500 mg/dL_Chol
 
Variable: HDL_Cholesterol
LOINC: 2085-9 : mg/dL : 14646-4 : mmol/L
Default Unit: mg/dL_Chol
Allowable Units: mg/dL_Chol  mmol/L_Chol  
Minimum value: 10 mg/dL_Chol
Maximum value: 200 mg/dL_Chol
 
Variable: Systolic_Blood_Pressure
LOINC: 8480-6 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
Minimum value: 95 mmHg
Maximum value: 300 mmHg
 
Radio Button Variable: On_Hypertension_Med
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: Diabetes
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: Smoker
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
 


 
Online calculator: Cardiovascular Risk Assessment (10-year, Framingham 2008)
Source file: Framingham08.cc
EBMcalc Version: 8.9
Associated ICD10-CM codes I25.84 Coronary atherosclerosis due to calcified coronary lesion; E78.5 Hyperlipidemia, unspecified; E78.4 Other hyperlipidemia; E78.2 Mixed hyperlipidemia; I10 Essential (primary) hypertension
Associated ICD9-CM codes 401 Essential hypertension; 401.1 Benign hypertension; 272.2 Mixed hyperlipidemia; 272.4 Hyperlipidemia nec/nos; 414.0 Coronary atherosclerosis; 414.4 Coronary atherosclerosis

 
Equation: Risk_Factors = (ln(Age) * Age_Factor) + (ln(Total_Chol) * Total_Chol_Factor) + (ln(HDL_Chol) * HDL_Chol_Factor) + (ln(Sys_BP) * Sys_BP_Factor) + Cig + DM - Avg_Risk
 
Equation: Risk = 100 * (1 - power(Risk_Period_Factor, eTo(Risk_Factors)))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 30 yr
Maximum value: 74 yr
 
Variable: Sys_BP
LOINC: 8480-6 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: Total_Chol
LOINC: 2093-3 : mg/dL : 14647-2 : mmol/L
Default Unit: mg/dL_Chol
Allowable Units: mg/dL_Chol  mmol/L_Chol  
 
Variable: HDL_Chol
LOINC: 2085-9 : mg/dL : 14646-4 : mmol/L
Default Unit: mg/dL_Chol
Allowable Units: mg/dL_Chol  mmol/L_Chol  
 
 


 
Online calculator: Cardiovascular Risk Assessment (10-year, MESA 2015, with or without CAC score)
Source file: MESA.cc
EBMcalc Version: 13.4
Associated ICD10-CM codes I25.84 Coronary atherosclerosis due to calcified coronary lesion; E78.5 Hyperlipidemia, unspecified; E78.4 Other hyperlipidemia; E78.2 Mixed hyperlipidemia; I10 Essential (primary) hypertension; I67.2 Cerebral atherosclerosis
Associated ICD9-CM codes 434.0 Cerebral thrombosis; 437.0 Cerebral atherosclerosis; 401 Essential hypertension; 401.1 Benign hypertension; 272.2 Mixed hyperlipidemia; 272.4 Hyperlipidemia nec/nos; 414.0 Coronary atherosclerosis; 414.4 Coronary atherosclerosis

 
Equation: Terms = (Age * 0.0455) + (Sex * 0.7496) + ((Race == 1?1:0) * -0.2111) + ((Race == 2?1:0) * -0.5055) + ((Race == 3?1:0) * -0.19) + (Diabetes * 0.5168) + (Smoker * 0.4732) + (Total_Cholesterol * 0.0053) - (HDL_Cholesterol * 0.0140) + (On_Lipid_Lowering_Med * 0.2473) + (Systolic_Blood_Pressure * 0.0085) + (On_Hypertension_Med * 0.3381) + (Family_History_MI * 0.4522)
 
Equation: Ten_Year_Risk = 100 * (1 - power(0.99963, eTo(Terms)))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Terms_CAC = (Age * 0.0172) + (Sex * 0.4079) + ((Race == 1?1:0) * 0.0353) + ((Race == 2?1:0) * -0.3475) + ((Race == 3?1:0) * -0.0222) + (Diabetes * 0.3892) + (Smoker * 0.3717) + (Total_Cholesterol * 0.0043) - (HDL_Cholesterol * 0.0114) + (On_Lipid_Lowering_Med * 0.1206) + (Systolic_Blood_Pressure * 0.0066) + (On_Hypertension_Med * 0.2278) + (Family_History_MI * 0.3239) + (ln(CAC + 1) * 0.2743)
 
Equation: Ten_Year_Risk_CAC = 100 * (1 - power(0.99833, eTo(Terms_CAC)))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Radio Button Variable: Race
Discrete variable option: Black or African American Variable value: 1
Discrete variable option: Chinese American Variable value: 2
Discrete variable option: Hispanic Variable value: 3
Discrete variable option: Non-Hispanic white Variable value: 4
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0
Discrete variable option: Male Variable value: 1
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 45 yr
Maximum value: 85 yr
 
Variable: Total_Cholesterol
LOINC: 2093-3 : mg/dL : 14647-2 : mmol/L
Default Unit: mg/dL_Chol
Allowable Units: mg/dL_Chol  mmol/L_Chol  
Minimum value: 100 mg/dL_Chol
Maximum value: 500 mg/dL_Chol
 
Variable: HDL_Cholesterol
LOINC: 2085-9 : mg/dL : 14646-4 : mmol/L
Default Unit: mg/dL_Chol
Allowable Units: mg/dL_Chol  mmol/L_Chol  
Minimum value: 10 mg/dL_Chol
Maximum value: 200 mg/dL_Chol
 
Variable: Systolic_Blood_Pressure
LOINC: 8480-6 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
Minimum value: 95 mmHg
Maximum value: 300 mmHg
 
Radio Button Variable: On_Hypertension_Med
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: On_Lipid_Lowering_Med
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: Diabetes
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: Smoker
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: Family_History_MI
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Variable: CAC
Default Unit: Agatston units
Allowable Units: Agatston units
 
 


 
Online calculator: Cardiovascular Risk Assessment in Men (10-year, patient information, Framingham 2008)
Source file: Framingham08_M_Patient.cc
EBMcalc Version: 8.9
Associated ICD10-CM codes I25.84 Coronary atherosclerosis due to calcified coronary lesion; E78.5 Hyperlipidemia, unspecified; E78.4 Other hyperlipidemia; E78.2 Mixed hyperlipidemia; I10 Essential (primary) hypertension
Associated ICD9-CM codes 401 Essential hypertension; 401.1 Benign hypertension; 272.2 Mixed hyperlipidemia; 272.4 Hyperlipidemia nec/nos; 414.0 Coronary atherosclerosis; 414.4 Coronary atherosclerosis

 
Equation: Risk_Factors = (ln(Age) * 3.06117) + (ln(Total_Cholesterol) * 1.12370) - (ln(HDL_Cholesterol) * 0.93263) + (ln(Systolic_Blood_Pressure) * On_Hypertension_Med) + Smoker + Diabetes - 23.9802
 
Equation: Risk = 100 * (1 - power(0.88936, eTo(Risk_Factors)))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 30 yr
Maximum value: 74 yr
 
Variable: Systolic_Blood_Pressure
LOINC: 8480-6 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
Minimum value: 90 mmHg
Maximum value: 300 mmHg
 
Variable: Total_Cholesterol
LOINC: 2093-3 : mg/dL : 14647-2 : mmol/L
Default Unit: mg/dL_Chol
Allowable Units: mg/dL_Chol  mmol/L_Chol  
 
Variable: HDL_Cholesterol
LOINC: 2085-9 : mg/dL : 14646-4 : mmol/L
Default Unit: mg/dL_HDL
Allowable Units: mg/dL_HDL  mmol/L_HDL  
 
Radio Button Variable: On_Hypertension_Med
Discrete variable option: No Variable value: 1.93303
Discrete variable option: Yes Variable value: 1.99881
 
Radio Button Variable: Smoker
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 0.65451
 
Radio Button Variable: Diabetes
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 0.57367
 
 


 
Online calculator: Cardiovascular Risk Assessment in Men (10-year, Reynolds Risk Score 2008)
Source file: ReynoldsScore_M.cc
EBMcalc Version: 12.4
Associated ICD10-CM codes I25.84 Coronary atherosclerosis due to calcified coronary lesion; E78.5 Hyperlipidemia, unspecified; E78.4 Other hyperlipidemia; E78.2 Mixed hyperlipidemia; I10 Essential (primary) hypertension
Associated ICD9-CM codes 401 Essential hypertension; 401.1 Benign hypertension; 272.2 Mixed hyperlipidemia; 272.4 Hyperlipidemia nec/nos; 414.0 Coronary atherosclerosis; 414.4 Coronary atherosclerosis

 
Equation: Terms = (4.385 * ln(Age)) + (2.607 * ln(Systolic_Blood_Pressure)) + (0.963 * ln(Total_Cholesterol)) - (0.772 * ln(HDL_Cholesterol)) + (0.405 * Smoker) + (0.102 * ln(HS_CRP)) + (0.541 * Premature_Parental_MI) - 33.097
Default Result Unit: logit
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Ten_Year_Risk = 100 * (1 - power(0.8990, eTo(Terms)))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Systolic_Blood_Pressure
LOINC: 8480-6 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: Total_Cholesterol
LOINC: 2093-3 : mg/dL : 14647-2 : mmol/L
Default Unit: mg/dL_Chol
Allowable Units: mg/dL_Chol  mmol/L_Chol  
 
Variable: HDL_Cholesterol
LOINC: 2085-9 : mg/dL : 14646-4 : mmol/L
Default Unit: mg/dL_HDL
Allowable Units: mg/dL_HDL  mmol/L_HDL  
 
Variable: HS_CRP
LOINC: 30522-7 : mg/L : 71426-1 : mg/L : 76486-0 : nmol/L
Default Unit: mg/L_HSCRP
Allowable Units: mg/L_HSCRP  mg/dL_HSCRP  nmol/L_HSCRP  
 
Radio Button Variable: Smoker
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: Premature_Parental_MI
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
 


 
Online calculator: Cardiovascular Risk Assessment in Type I Diabetes (5-year)
Source file: CVDinDM1.cc
EBMcalc Version: 13.1
Associated ICD10-CM codes E10.9 Type 1 diabetes mellitus without complications; I25.10 Atherosclerotic heart disease of native coronary artery without angina pectoris; I25.84 Coronary atherosclerosis due to calcified coronary lesion
Associated ICD9-CM codes 414.4 Coronary atherosclerosis; 429.2 Cardiovasclr disease nos; 250.9 Diabetes w complic nos; 250 Diabetes mellitus; 250.01 Diabetes uncompl type i

 
Equation: Terms = (0.08426 * (DM_Duration - 28.014)) + (0.04742 * (Age - DM_Duration - 16.601)) + (0.80050 * (ln(Total_Cholesterol / HDL_Cholesterol) - 1.1470)) + (1.27275 * (ln(HbA1C_DCCT) - 2.065)) + (1.20050 * (ln(Systolic_Blood_Pressure) - 4.8598)) + (0.56688 * (Smoker - 0.1483)) + (0.41995 * (Macroalbuminuria - 0.1237)) + (1.25506 * (Prior_CVD - 0.0612))
Default Result Unit: logit
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: CVD_5_Year_Risk = 100 * (1 - power(0.97136, eTo(Terms)))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: DM_Duration
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Total_Cholesterol
LOINC: 2093-3 : mg/dL : 14647-2 : mmol/L
Default Unit: mg/dL_Chol
Allowable Units: mg/dL_Chol  mmol/L_Chol  
 
Variable: HDL_Cholesterol
LOINC: 2085-9 : mg/dL : 14646-4 : mmol/L
Default Unit: mg/dL_Chol
Allowable Units: mg/dL_Chol  mmol/L_Chol  
 
Variable: HbA1C_DCCT
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: Systolic_Blood_Pressure
LOINC: 8480-6 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Radio Button Variable: Smoker
Discrete variable option: Yes Variable value: 1
Discrete variable option: No Variable value: 0
 
Radio Button Variable: Macroalbuminuria
Discrete variable option: Yes Variable value: 1
Discrete variable option: No Variable value: 0
 
Radio Button Variable: Prior_CVD
Discrete variable option: Yes Variable value: 1
Discrete variable option: No Variable value: 0
 
 


 
Online calculator: Cardiovascular Risk Assessment in Women (10-year, patient information, Framingham 2008)
Source file: Framingham08_F_Patient.cc
EBMcalc Version: 8.9
Associated ICD10-CM codes I25.84 Coronary atherosclerosis due to calcified coronary lesion; E78.5 Hyperlipidemia, unspecified; E78.4 Other hyperlipidemia; E78.2 Mixed hyperlipidemia; I10 Essential (primary) hypertension
Associated ICD9-CM codes 401 Essential hypertension; 401.1 Benign hypertension; 272.2 Mixed hyperlipidemia; 272.4 Hyperlipidemia nec/nos; 414.0 Coronary atherosclerosis; 414.4 Coronary atherosclerosis

 
Equation: Risk_Factors = (ln(Age) * 2.32888) + (ln(Total_Cholesterol) * 1.20904) - (ln(HDL_Cholesterol) * 0.70833) + (ln(Systolic_Blood_Pressure) * On_Hypertension_Med) + Smoker + Diabetes - 26.1931
 
Equation: Risk = 100 * (1 - power(0.95012, eTo(Risk_Factors)))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 30 yr
Maximum value: 74 yr
 
Variable: Systolic_Blood_Pressure
LOINC: 8480-6 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: Total_Cholesterol
LOINC: 2093-3 : mg/dL : 14647-2 : mmol/L
Default Unit: mg/dL_Chol
Allowable Units: mg/dL_Chol  mmol/L_Chol  
 
Variable: HDL_Cholesterol
LOINC: 2085-9 : mg/dL : 14646-4 : mmol/L
Default Unit: mg/dL_HDL
Allowable Units: mg/dL_HDL  mmol/L_HDL  
 
Radio Button Variable: On_Hypertension_Med
Discrete variable option: No Variable value: 2.76157
Discrete variable option: Yes Variable value: 2.82263
 
Radio Button Variable: Smoker
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 0.52873
 
Radio Button Variable: Diabetes
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 0.69154
 
 


 
Online calculator: Cardiovascular Risk Assessment in Women (10-year, Reynolds Risk Score 2007)
Source file: ReynoldsScore_F.cc
EBMcalc Version: 12.4
Associated ICD10-CM codes I25.84 Coronary atherosclerosis due to calcified coronary lesion; E78.5 Hyperlipidemia, unspecified; E78.4 Other hyperlipidemia; E78.2 Mixed hyperlipidemia; I10 Essential (primary) hypertension
Associated ICD9-CM codes 401 Essential hypertension; 401.1 Benign hypertension; 272.2 Mixed hyperlipidemia; 272.4 Hyperlipidemia nec/nos; 414.0 Coronary atherosclerosis; 414.4 Coronary atherosclerosis

 
Equation: Terms = (0.0799 * Age) + (3.137 * ln(Systolic_Blood_Pressure)) + (1.382 * ln(Total_Cholesterol)) - (1.172 * ln(HDL_Cholesterol)) + (0.818 * Smoker) + (0.180 * ln(HS_CRP)) + (0.438 * Premature_Parental_MI) - 22.325
Default Result Unit: logit
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Ten_Year_Risk = 100 * (1 - power(0.98634, eTo(Terms)))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Systolic_Blood_Pressure
LOINC: 8480-6 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: Total_Cholesterol
LOINC: 2093-3 : mg/dL : 14647-2 : mmol/L
Default Unit: mg/dL_Chol
Allowable Units: mg/dL_Chol  mmol/L_Chol  
 
Variable: HDL_Cholesterol
LOINC: 2085-9 : mg/dL : 14646-4 : mmol/L
Default Unit: mg/dL_HDL
Allowable Units: mg/dL_HDL  mmol/L_HDL  
 
Variable: HS_CRP
LOINC: 30522-7 : mg/L : 71426-1 : mg/L : 76486-0 : nmol/L
Default Unit: mg/L_HSCRP
Allowable Units: mg/L_HSCRP  mg/dL_HSCRP  nmol/L_HSCRP  
 
Radio Button Variable: Smoker
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: Premature_Parental_MI
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
 


 
Online calculator: CDC height for age percentiles for boys (2 to 20 years)
Source file: CDCHeightForAgeBoys.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes E34.4 Constitutional tall stature; Q77.1 Thanatophoric short stature; E34.3 Short stature due to endocrine disorder; R62.52 Short stature (child); Q87.1 Congenital malformation syndromes predominantly associated with short stature
Associated ICD9-CM codes 783.43 Short stature

 
Equation: Age_Months = Age * 12
 
Equation: Z_Score = (power((Height / M), L) - 1) / (L * S)
 
Equation: Percentile = ZtoPercentile(Z_Score)
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 2 yr
Maximum value: 19.99 yr
 
 


 
Online calculator: CDC height for age percentiles for girls (2 to 20 years)
Source file: CDCHeightForAgeGirls.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes E34.4 Constitutional tall stature; Q77.1 Thanatophoric short stature; E34.3 Short stature due to endocrine disorder; R62.52 Short stature (child); Q87.1 Congenital malformation syndromes predominantly associated with short stature
Associated ICD9-CM codes 783.43 Short stature

 
Equation: Age_Months = Age * 12
 
Equation: Z_Score = (power((Height / M), L) - 1) / (L * S)
 
Equation: Percentile = ZtoPercentile(Z_Score)
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 2 yr
Maximum value: 19.99 yr
 
 


 
Online calculator: CDC Weight for Age Percentiles for Boys (2-20 years)
Source file: CDCWeightForAgeBoys.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z13.21 Encounter for screening for nutritional disorder; E46 Unspecified protein-calorie malnutrition; E22.0 Acromegaly and pituitary gigantism; E23.0 Hypopituitarism; E34.3 Short stature due to endocrine disorder
Associated ICD9-CM codes 259.4 Dwarfism nec; 253.3 Pituitary dwarfism; 253.0 Acromegaly and gigantism; 263.9 Protein-cal malnutr nos; V77.2 Screen for malnutrition

 
Equation: Age_Months = Age *12
 
Equation: Z_Score = (power((Weight / M), L) - 1) / (L * S)
 
Equation: Percentile = ZtoPercentile(Z_Score)
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 2 yr
Maximum value: 19.99 yr
 
 


 
Online calculator: CDC Weight for Age Percentiles for Girls (2-20 years)
Source file: CDCWeightForAgeGirls.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z13.21 Encounter for screening for nutritional disorder; E46 Unspecified protein-calorie malnutrition; E22.0 Acromegaly and pituitary gigantism; E23.0 Hypopituitarism; E34.3 Short stature due to endocrine disorder
Associated ICD9-CM codes 259.4 Dwarfism nec; 253.3 Pituitary dwarfism; 253.0 Acromegaly and gigantism; 263.9 Protein-cal malnutr nos; V77.2 Screen for malnutrition

 
Equation: Age_Months = Age *12
 
Equation: Z_Score = (power((Weight / M), L) - 1) / (L * S)
 
Equation: Percentile = ZtoPercentile(Z_Score)
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 2 yr
Maximum value: 19.99 yr
 
 


 
Online calculator: CDC Weight for Height Percentiles for Boys (77-121 cm tall)
Source file: CDCWeightForHeightBoys.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z13.21 Encounter for screening for nutritional disorder; E46 Unspecified protein-calorie malnutrition; E22.0 Acromegaly and pituitary gigantism; E23.0 Hypopituitarism; E34.3 Short stature due to endocrine disorder
Associated ICD9-CM codes 259.4 Dwarfism nec; 253.3 Pituitary dwarfism; 253.0 Acromegaly and gigantism; 263.9 Protein-cal malnutr nos; V77.2 Screen for malnutrition

 
Equation: Z_Score = (power((Weight / M), L) - 1) / (L * S)
 
Equation: Percentile = ZtoPercentile(Z_Score)
 
 


 
Online calculator: CDC Weight for Height Percentiles for Girls (77-121 cm tall)
Source file: CDCWeightForHeightGirls.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z13.21 Encounter for screening for nutritional disorder; E46 Unspecified protein-calorie malnutrition; E22.0 Acromegaly and pituitary gigantism; E23.0 Hypopituitarism; E34.3 Short stature due to endocrine disorder
Associated ICD9-CM codes 259.4 Dwarfism nec; 253.3 Pituitary dwarfism; 253.0 Acromegaly and gigantism; 263.9 Protein-cal malnutr nos; V77.2 Screen for malnutrition

 
Equation: Z_Score = (power((Weight / M), L) - 1) / (L * S)
 
Equation: Percentile = ZtoPercentile(Z_Score)
 
 


 
Online calculator: CDC/NCHS Infant Growth Percentiles (<36 months)
Source file: CDCInfantGrowth.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z13.89 Encounter for screening for other disorder; E66.9 Obesity, unspecified; E66.01 Morbid (severe) obesity due to excess calories; Z13.21 Encounter for screening for nutritional disorder; E46 Unspecified protein-calorie malnutrition; E22.0 Acromegaly and pituitary gigantism; E23.0 Hypopituitarism; E34.3 Short stature due to endocrine disorder
Associated ICD9-CM codes 259.4 Dwarfism nec; 253.3 Pituitary dwarfism; 253.0 Acromegaly and gigantism; 263.9 Protein-cal malnutr nos; V77.2 Screen for malnutrition; 278.01 Morbid obesity; 278.00 Obesity nos; V77.8 Screening for obesity

 
Equation: Weight_Z_Score = (power((Weight / M), L) - 1) / (L * S)
 
Equation: Weight_Percentile = ZtoPercentile(Weight_Z_Score)
 
Equation: Length_Z_Score = (power((Length / M), L) - 1) / (L * S)
 
Equation: Length_Percentile = ZtoPercentile(Length_Z_Score)
 
Equation: Weight_For_Length_Z_Score = (power((Weight / M), L) - 1) / (L * S)
 
Equation: Weight_For_Length_Percentile = ZtoPercentile(Weight_For_Length_Z_Score)
 
Equation: Head_Circ_Z_Score = (power((Head_Circumference / M), L) - 1) / (L * S)
 
Equation: Head_Circ_Percentile = ZtoPercentile(Head_Circ_Z_Score)
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: mo
Allowable Units: mo  yr  
Minimum value: 1 mo
Maximum value: 36 mo
 
 


 
Online calculator: CDC/NCHS Infant Head Circumference for Age Percentiles (<36 months)
Source file: CDCInfantHeadCircForAge.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z13.21 Encounter for screening for nutritional disorder; E22.0 Acromegaly and pituitary gigantism; Q02 Microcephaly; Q75.3 Macrocephaly
Associated ICD9-CM codes 259.4 Dwarfism nec; 253.3 Pituitary dwarfism; 253.0 Acromegaly and gigantism; 263.9 Protein-cal malnutr nos; V77.2 Screen for malnutrition

 
Equation: Z_Score = (power((Head_Circumference / M), L) - 1) / (L * S)
 
Equation: Percentile = ZtoPercentile(Z_Score)
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: mo
Allowable Units: mo  yr  
Maximum value: 35.99 mo
 
 


 
Online calculator: CDC/NCHS Infant Length for Age Percentiles (<36 months)
Source file: CDCInfantLengthForAge.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes E34.4 Constitutional tall stature; Q77.1 Thanatophoric short stature; E34.3 Short stature due to endocrine disorder; R62.52 Short stature (child); Q87.1 Congenital malformation syndromes predominantly associated with short stature
Associated ICD9-CM codes 783.43 Short stature

 
Equation: Z_Score = (power((Length / M), L) - 1) / (L * S)
 
Equation: Percentile = ZtoPercentile(Z_Score)
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: mo
Allowable Units: mo  yr  
Maximum value: 35.99 mo
 
 


 
Online calculator: CDC/NCHS Infant Weight for Age Percentiles (<36 months)
Source file: CDCInfantWeightForAge.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z13.21 Encounter for screening for nutritional disorder; E46 Unspecified protein-calorie malnutrition; E22.0 Acromegaly and pituitary gigantism; E23.0 Hypopituitarism; E34.3 Short stature due to endocrine disorder
Associated ICD9-CM codes 259.4 Dwarfism nec; 253.3 Pituitary dwarfism; 253.0 Acromegaly and gigantism; 263.9 Protein-cal malnutr nos; V77.2 Screen for malnutrition

 
Equation: Z_Score = (power((Weight / M), L) - 1) / (L * S)
 
Equation: Percentile = ZtoPercentile(Z_Score)
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: mo
Allowable Units: mo  yr  
Maximum value: 35.99 mo
 
 


 
Online calculator: CDC/NCHS Infant Weight for Length Percentiles (<36 months)
Source file: CDCInfantWeightForLength.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z13.21 Encounter for screening for nutritional disorder; E46 Unspecified protein-calorie malnutrition; E22.0 Acromegaly and pituitary gigantism; E23.0 Hypopituitarism; E34.3 Short stature due to endocrine disorder
Associated ICD9-CM codes 259.4 Dwarfism nec; 253.3 Pituitary dwarfism; 253.0 Acromegaly and gigantism; 263.9 Protein-cal malnutr nos; V77.2 Screen for malnutrition

 
Equation: Z_Score = (power((Weight / M), L) - 1) / (L * S)
 
Equation: Percentile = ZtoPercentile(Z_Score)
 
 


 
Online calculator: Chi Square Analysis
Source file: ChiSquare.eq
EBMcalc Version: 8.7

 
Equation: N = a + b + c + d
 
Equation: Chi_Square = ( N * power(((a*d) -(b*c)), 2) ) / ( (a+b)*(c+d)*(a+c)*(b+d) )
Top Row Variables: a, b
Bottom Row Variables: c, d
 
 


 
Online calculator: Cirrhosis Probability in Hepatitis C (APRI)
Source file: APRI.cc
EBMcalc Version: 12.1
Associated ICD10-CM codes K77 Liver disorders in diseases classified elsewhere; Z22.52 Carrier of viral hepatitis C; K73.8 Other chronic hepatitis, not elsewhere classified; K73.2 Chronic active hepatitis, not elsewhere classified
Associated ICD9-CM codes 571.49 Chronic hepatitis nec; V02.62 Hepatitis c carrier; 573.1 Hepatitis in viral dis; 573.3 Hepatitis nos

 
Variable: Platelets
LOINC: 777-3 : x10(3)/mcL : 26515-7 : 10^9/L
Default Unit: 10^9/L
Allowable Units: 10^9/L  10^3/microL  
 
Variable: AST
LOINC: 1920-8 : U/L : 27344-1 : U/L : 1919-0 : U/L
Default Unit: U/L
Allowable Units: U/L  
 
Variable: Top_Normal_AST
Default Unit: U/L
Allowable Units: U/L  
 
Equation: APRI = (AST / Top_Normal_AST) * (100 / Platelets)
Default Result Unit: index
Allowable Result Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Cirrhosis Probability in Hepatitis C (Bonacini discriminant score)
Source file: CDS_Bonacini.cc
EBMcalc Version: 12.1
Associated ICD10-CM codes K77 Liver disorders in diseases classified elsewhere; Z22.52 Carrier of viral hepatitis C; K73.8 Other chronic hepatitis, not elsewhere classified; K73.2 Chronic active hepatitis, not elsewhere classified
Associated ICD9-CM codes 571.49 Chronic hepatitis nec; V02.62 Hepatitis c carrier; 573.1 Hepatitis in viral dis; 573.3 Hepatitis nos

 
Variable: Platelets
LOINC: 777-3 : x10(3)/mcL : 26515-7 : 10^9/L
Default Unit: 10^9/L
Allowable Units: 10^9/L  10^3/microL  
 
Variable: ALT
LOINC: 1742-6 : U/L : 25302-1 : U/L
Default Unit: U/L
Allowable Units: U/L  
 
Variable: AST
LOINC: 1920-8 : U/L : 27344-1 : U/L : 1919-0 : U/L
Default Unit: U/L
Allowable Units: U/L  
 
Variable: INR
LOINC: 34714-6 : ratio : 6301-6 : ratio
Default Unit: ratio
Allowable Units: fraction  rate  ratio  %  percent  
 
Equation: CDS = Platelet_Score + ALT_AST_Ratio_Score + INR_Score
Default Result Unit: points
Allowable Result Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Cirrhosis probability in hepatitis C (FIB-4)
Source file: FIB4.cc
EBMcalc Version: 12.1
Associated ICD10-CM codes K77 Liver disorders in diseases classified elsewhere; Z22.52 Carrier of viral hepatitis C; K73.8 Other chronic hepatitis, not elsewhere classified; K73.2 Chronic active hepatitis, not elsewhere classified
Associated ICD9-CM codes 571.49 Chronic hepatitis nec; V02.62 Hepatitis c carrier; 573.1 Hepatitis in viral dis; 573.3 Hepatitis nos

 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Platelets
LOINC: 777-3 : x10(3)/mcL : 26515-7 : 10^9/L
Default Unit: 10^9/L
Allowable Units: 10^9/L  10^3/microL  
 
Variable: ALT
LOINC: 1742-6 : U/L : 25302-1 : U/L
Default Unit: U/L
Allowable Units: U/L  
 
Variable: AST
LOINC: 1920-8 : U/L : 27344-1 : U/L : 1919-0 : U/L
Default Unit: U/L
Allowable Units: U/L  
 
Equation: FIB4 = Age * AST / (Platelets * sqr(ALT))
Default Result Unit: index
Allowable Result Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Cirrhosis Probability in Hepatitis C (GUCI)
Source file: GUCI.cc
EBMcalc Version: 12.1
Associated ICD10-CM codes K77 Liver disorders in diseases classified elsewhere; Z22.52 Carrier of viral hepatitis C; K73.8 Other chronic hepatitis, not elsewhere classified; K73.2 Chronic active hepatitis, not elsewhere classified
Associated ICD9-CM codes 571.49 Chronic hepatitis nec; V02.62 Hepatitis c carrier; 573.1 Hepatitis in viral dis; 573.3 Hepatitis nos

 
Variable: Platelets
LOINC: 777-3 : x10(3)/mcL : 26515-7 : 10^9/L
Default Unit: 10^9/L
Allowable Units: 10^9/L  10^3/microL  
 
Variable: AST
LOINC: 1920-8 : U/L : 27344-1 : U/L : 1919-0 : U/L
Default Unit: U/L
Allowable Units: U/L  
 
Variable: Top_Normal_AST
Default Unit: U/L
Allowable Units: U/L  
 
Variable: INR
LOINC: 34714-6 : ratio : 6301-6 : ratio
Default Unit: ratio
Allowable Units: fraction  rate  ratio  %  percent  
 
Equation: GUCI = (AST / Top_Normal_AST) * INR * 100 / Platelets
Default Result Unit: index
Allowable Result Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Cirrhosis Probability in Hepatitis C (Lok index)
Source file: LokIndex.cc
EBMcalc Version: 12.1
Associated ICD10-CM codes K77 Liver disorders in diseases classified elsewhere; Z22.52 Carrier of viral hepatitis C; K73.8 Other chronic hepatitis, not elsewhere classified; K73.2 Chronic active hepatitis, not elsewhere classified
Associated ICD9-CM codes 571.49 Chronic hepatitis nec; V02.62 Hepatitis c carrier; 573.1 Hepatitis in viral dis; 573.3 Hepatitis nos

 
Variable: Platelets
LOINC: 777-3 : x10(3)/mcL : 26515-7 : 10^9/L
Default Unit: 10^9/L
Allowable Units: 10^9/L  10^3/microL  
 
Variable: ALT
LOINC: 1742-6 : U/L : 25302-1 : U/L
Default Unit: U/L
Allowable Units: U/L  
 
Variable: AST
LOINC: 1920-8 : U/L : 27344-1 : U/L : 1919-0 : U/L
Default Unit: U/L
Allowable Units: U/L  
 
Variable: INR
LOINC: 34714-6 : ratio : 6301-6 : ratio
Default Unit: ratio
Allowable Units: fraction  rate  ratio  %  percent  
 
Equation: Log_Odds_Lok = (1.26 * AST / ALT) + (5.27 * INR) - (0.0089 * Platelets) - 5.56
 
Equation: Lok_Index = eTo(Log_Odds_Lok) / (1 + eTo(Log_Odds_Lok))
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
 


 
Online calculator: Cirrhosis Probability in Hepatitis C MultiCalc
Source file: CirrhosisProbability_MC.cc
EBMcalc Version: 12.1
Associated ICD10-CM codes K77 Liver disorders in diseases classified elsewhere; Z22.52 Carrier of viral hepatitis C; K73.8 Other chronic hepatitis, not elsewhere classified; K73.2 Chronic active hepatitis, not elsewhere classified
Associated ICD9-CM codes 571.49 Chronic hepatitis nec; V02.62 Hepatitis c carrier; 573.1 Hepatitis in viral dis; 573.3 Hepatitis nos

 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Platelets
LOINC: 777-3 : x10(3)/mcL : 26515-7 : 10^9/L
Default Unit: 10^9/L
Allowable Units: 10^9/L  10^3/microL  
 
Variable: ALT
LOINC: 1742-6 : U/L : 25302-1 : U/L
Default Unit: U/L_ALT
Allowable Units: u/L_ALT  U/L_ALT  IU/L_ALT  mcKat/L_ALT  
 
Variable: AST
LOINC: 1920-8 : U/L : 27344-1 : U/L : 1919-0 : U/L
Default Unit: U/L_AST
Allowable Units: u/L_AST  U/L_AST  IU/L_AST  mcKat/L_AST  
 
Variable: Top_Normal_AST
Default Unit: U/L
Allowable Units: U/L  
 
Variable: INR
LOINC: 34714-6 : ratio : 6301-6 : ratio
Default Unit: ratio
Allowable Units: fraction  rate  ratio  %  percent  
 
Equation: CDS = Platelet_Score + ALT_AST_Ratio_Score + INR_Score
Default Result Unit: points
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Log_Odds_Lok = (1.26 * AST / ALT) + (5.27 * INR) - (0.0089 * Platelets) - 5.56
 
Equation: Lok_Index = eTo(Log_Odds_Lok) / (1 + eTo(Log_Odds_Lok))
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: GUCI = (AST / Top_Normal_AST) * INR * 100 / Platelets
Default Result Unit: index
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: APRI = (AST / Top_Normal_AST) * (100 / Platelets)
Default Result Unit: index
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: FIB4 = Age * AST / (Platelets * sqr(ALT))
Default Result Unit: index
Allowable Result Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Closing Capacity to Total Lung Volume Capacity
Source file: ClosingCapTLCRatio.eq
EBMcalc Version: 8.8

 
Equation: Total_Lung_Cap = Insp_Reserve_Vol + Tidal_Vol + Exp_Reserve_Vol + Residual_Vol
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Equation: Closing_Cap = Closing_Vol + Residual_Vol
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Equation: CC_TLC_Ratio = 100 * Closing_Cap / Total_Lung_Cap
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Exp_Reserve_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Residual_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Insp_Reserve_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Tidal_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Closing_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
 


 
Online calculator: Closing Capacity
Source file: ClosingCapacity.eq
EBMcalc Version: 8.7

 
Equation: Closing_Cap = Closing_Vol + Residual_Vol
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Variable: Closing_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Residual_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
 


 
Online calculator: Closing Volume to Vital Capacity Ratio
Source file: ClosingVolVCRatio.eq
EBMcalc Version: 8.8

 
Equation: Vital_Cap = Insp_Reserve_Vol + Tidal_Vol + Exp_Reserve_Vol
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Equation: CV_VC_Ratio = 100 * Closing_Vol / Vital_Cap
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Exp_Reserve_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Insp_Reserve_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Tidal_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Closing_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
 


 
Online calculator: Confidence Interval of a Binomial Proportion
Source file: ConfIntervalBinomial.eq
EBMcalc Version: 8.7

 
Equation: Proportion = A / N
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Lower_End = Proportion - ( Z * sqr( (A * (N - A)) / power(N,3)))
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Upper_End = Proportion + ( Z * sqr( (A * (N - A)) / power(N,3)))
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: A
Default Unit: number
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: N
Default Unit: number
Allowable Units: none  index  #  number  logit  score  points  
 
Radio Button Variable: Z
Discrete variable option: 90% Confidence Variable value: 1.645
Discrete variable option: 95% Confidence Variable value: 1.96
Discrete variable option: 98% Confidence Variable value: 2.33
Discrete variable option: 99% Confidence Variable value: 2.576
 
 


 
Online calculator: Confidence Interval of a Difference Between Proportions
Source file: ConfIntervalDiffProp.eq
EBMcalc Version: 8.7

 
Equation: Difference = (A / N) - (C / M)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Interval = Z * sqr( (A*(N-A)/power(N,3)) + (C*(M-C)/power(M,3)) )
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Lower_End = Difference - Interval
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Upper_End = Difference + Interval
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: A
Default Unit: number
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: N
Default Unit: number
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: C
Default Unit: number
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: M
Default Unit: number
Allowable Units: none  index  #  number  logit  score  points  
 
Radio Button Variable: Z
Discrete variable option: 90% Confidence Variable value: 1.645
Discrete variable option: 95% Confidence Variable value: 1.96
Discrete variable option: 98% Confidence Variable value: 2.33
Discrete variable option: 99% Confidence Variable value: 2.576
 
 


 
Online calculator: Confidence Interval of a Ratio of Proportions
Source file: ConfIntervalRatioProp.eq
EBMcalc Version: 8.7

 
Equation: Prop_Ratio = (A / N) / (C / M)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Exponent = Z * sqr( (1/A) - (1/N) + (1/C) - (1/M) )
Default Result Unit: number
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Lower_End = Prop_Ratio * eTo( -Exponent)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Upper_End = Prop_Ratio * eTo(Exponent)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: A
Default Unit: number
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: N
Default Unit: number
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: C
Default Unit: number
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: M
Default Unit: number
Allowable Units: none  index  #  number  logit  score  points  
 
Radio Button Variable: Z
Discrete variable option: 90% Confidence Variable value: 1.645
Discrete variable option: 95% Confidence Variable value: 1.96
Discrete variable option: 98% Confidence Variable value: 2.33
Discrete variable option: 99% Confidence Variable value: 2.576
 
 


 
Online calculator: Confidence Interval of a Ratio of Ratios
Source file: ConfIntervalRatioRatios.eq
EBMcalc Version: 8.7

 
Equation: Ratio_Of_Ratios = (A / B) / (C / D)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Exponent = Z * sqr( (1/A) + (1/B) + (1/C) + (1/D) )
Default Result Unit: number
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Lower_End = Ratio_Of_Ratios * eTo( -Exponent)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Upper_End = Ratio_Of_Ratios * eTo(Exponent)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: A
Default Unit: number
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: B
Default Unit: number
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: C
Default Unit: number
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: D
Default Unit: number
Allowable Units: none  index  #  number  logit  score  points  
 
Radio Button Variable: Z
Discrete variable option: 90% Confidence Variable value: 1.645
Discrete variable option: 95% Confidence Variable value: 1.96
Discrete variable option: 98% Confidence Variable value: 2.33
Discrete variable option: 99% Confidence Variable value: 2.576
 
 


 
Online calculator: Confidence Interval of a Survey
Source file: ConfidenceInterval.eq
EBMcalc Version: 8.7

 
Equation: Population_Factor = (Population - Sample_Size) / (Population - 1)
 
Equation: Conf_Interval = sqr(Conf_Level * (Percent/100) * (1 - (Percent/100)) / Sample_Size * Population_Factor) * 100
 
Radio Button Variable: Conf_Level
Discrete variable option: 90% Variable value: 2.706
Discrete variable option: 95% Variable value: 3.842
Discrete variable option: 99% Variable value: 6.635
 
Variable: Population
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: Sample_Size
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: Percent
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 100 %
 
 


 
Online calculator: COPE Statistic Adding Cost to Number Needed to Treat
Source file: COPE.eq
EBMcalc Version: 13.1

 
Equation: NNT = Math.abs(1 / (EER - CER))
Default Result Unit: number
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: COPE = NNT * Duration * 365 * Daily_Cost
Default Result Unit: $
Allowable Result Units: $  cents  
 
Variable: Duration
Default Unit: years
Allowable Units: months  years  
 
Variable: Daily_Cost
Default Unit: $
Allowable Units: $  cents  
 
Variable: CER
Default Unit: rate
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: EER
Default Unit: rate
Allowable Units: fraction  rate  ratio  %  percent  
 
 


 
Online calculator: Coronary Artery Disease Risk Clinical Assessment (Duke study)
Source file: DukeCAD.cc
EBMcalc Version: 11.4
Associated ICD10-CM codes I20.0 Unstable angina; Q24.5 Malformation of coronary vessels
Associated ICD9-CM codes 746.85 Coronary artery anomaly; 411.1 Intermed coronary synd

 
Equation: Angina_X = Angina_X
 
Equation: Sig_Disease_X = (Age * 0.1126) - (Sex * 0.328) - (Age * Sex * 0.0301) + Angina_X + (History_Of_MI * 1.093) + (Q_Waves * 1.213) + (History_Of_MI * Q_Waves * 0.741) + (Smoking * 2.596) + (Hyperlipidemia * 1.845) + (Diabetes * 0.694) + (ST_T_Changes * 0.637) - (Age * Smoking * 0.0404) - (Age * Hyperlipidemia * 0.0251) + (Sex * Smoking * 0.550) - 7.376
 
Equation: Pain_Index = Typical_Angina * Weekly_Episodes_Pain * (Progressive_Pain + Pain_Index_EKG + (2 * Nocturnal_Angina))
 
Equation: Risk_Factor_Index = Hyperlipidemia + Diabetes + Hypertension
 
Equation: Vasc_Disease_Index = Periph_Vasc_Disease + Cerebrovasc_Disease + Carotid_Bruit
 
Equation: Sev_Disease_X = (log(Duration_CAD + 1) * 0.3424) + (Chest_Pain * 0.3014) + (log(Duration_CAD + 1) * Chest_Pain * 0.1559) + (Age * 0.0299) + (Q_Waves * 0.3513) + (Pain_Index * 0.0054) - (Sex * 0.3823) + (Risk_Factor_Index * 0.1734) + (Vasc_Disease_Index * 0.2402) - 3.4732
 
Equation: Left_Main_Disease_X = (Typical_Angina * 1.1252) + (Age * 0.0483) - (Sex * 0.5770) + (Vasc_Disease_Index * 0.5923) + (log(Duration_CAD + 1) * 0.4027) - 6.7271
 
Equation: Significant_Disease_Probability = 100 / (1 + eTo(-1 * Sig_Disease_X))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Severe_Disease_Probability = 100 / (1 + eTo(-1 * Sev_Disease_X))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Left_Main_Disease_Probability = 100 / (1 + eTo(-1 * Left_Main_Disease_X))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 40 yr
Maximum value: 65 yr
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 1
Discrete variable option: Male Variable value: 0
 
Radio Button Variable: Chest_Pain
Discrete variable option: Non anginal Variable value: 0
Discrete variable option: Atypical angina Variable value: 1
Discrete variable option: Typical angina Variable value: 2
 
Variable: Weekly_Episodes_Pain
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
Maximum value: 35 #
 
Radio Button Variable: Progressive_Pain
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: Nocturnal_Angina
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: History_Of_MI
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Variable: Duration_CAD
Default Unit: yr
Allowable Units: mo  yr  
 
Radio Button Variable: Smoking
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: Hyperlipidemia
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: Diabetes
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: Hypertension
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: Periph_Vasc_Disease
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: Cerebrovasc_Disease
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: Carotid_Bruit
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: Q_Waves
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: ST_T_Changes
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
 


 
Online calculator: Creatinine Clearance (measured)
Source file: CreatinineCl.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis
Associated ICD9-CM codes 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: Creat_Clear = Urine_Creat * Days_Urine_Volume / Serum_Creat / 1440
LOINC of Result: 33558-8 : mL/min : 2164-2 : mL/min
Default Result Unit: mL/min
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: Urine_Creat
LOINC: 35674-1 : mg/dL : 2161-8 : mg/dL : 14683-7 : mmol/L : 22726-4
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
Variable: Days_Urine_Volume
Default Unit: mL
Allowable Units: fL  mL  L  
 
 


 
Online calculator: Creatinine Clearance (measured, SI units)
Source file: CreatinineCl_SI.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis
Associated ICD9-CM codes 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: Creat_Clear = Urine_Creat * Days_Urine_Volume / Serum_Creat / 86400
LOINC of Result: 33558-8 : mL/min : 2164-2 : mL/min
Default Result Unit: mL/sec
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: Urine_Creat
LOINC: 35674-1 : mg/dL : 2161-8 : mg/dL : 14683-7 : mmol/L : 22726-4
Default Unit: mcmol/L_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mcmol/L_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
Variable: Days_Urine_Volume
Default Unit: mL
Allowable Units: fL  mL  L  
 
 


 
Online calculator: Creatinine Clearance by Mass
Source file: CreatinineClMass.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis
Associated ICD9-CM codes 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: Creat_Clear = Urine_Creat_Mass_24_Hours / Serum_Creat_Conc / 0.0144
LOINC of Result: 33558-8 : mL/min : 2164-2 : mL/min
Default Result Unit: mL/min
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: Urine_Creat_Mass_24_Hours
Default Unit: gm
Allowable Units: mg  gm  kg  lb  
 
Variable: Serum_Creat_Conc
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
 


 
Online calculator: Creatinine Clearance Estimate by Cockcroft-Gault Equation (SI units)
Source file: CreatinineCl_CG_SI.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis
Associated ICD9-CM codes 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: Creat_Clear = 0.0205 * Sex * (140 - Age) * Weight / Serum_Creat
LOINC of Result: 33558-8 : mL/min : 2164-2 : mL/min
Default Result Unit: mL/sec
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0.85
Discrete variable option: Male Variable value: 1
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mcmol/L_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
 
 


 
Online calculator: Creatinine Clearance Estimate by Cockcroft-Gault Equation with Ideal Body Weight (SI units)
Source file: CreatinineCl_CG_AdjBW_SI.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes E66.01 Morbid (severe) obesity due to excess calories; N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis
Associated ICD9-CM codes 278.01 Morbid obesity; 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: IBW = Math.abs(Height > 152.4) * (2.3 * ((Height / 2.54) - 60)) + IBW_Sex
Default Result Unit: kg
Allowable Result Units: kg  lb  
 
Equation: CrCl = 0.02046 * CrCl_Sex * (140 - Age) * Weight_CrCl / Serum_Creat
LOINC of Result: 33558-8 : mL/min : 2164-2 : mL/min
Default Result Unit: mL/sec
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: cm  m  in  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mcmol/L_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
 


 
Online calculator: Creatinine Clearance Estimate by Cockcroft-Gault Equation with Ideal Body Weight
Source file: CreatinineCl_CG_AdjBW.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes E66.01 Morbid (severe) obesity due to excess calories; N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis
Associated ICD9-CM codes 278.01 Morbid obesity; 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: IBW = Math.abs(Height > 60) * (2.3 * (Height - 60)) + IBW_Sex
Default Result Unit: kg
Allowable Result Units: kg  lb  
 
Equation: CrCl = ((140 - Age) * (Weight_CrCl / (Serum_Creat * 72))) * CrCl_Sex
LOINC of Result: 33558-8 : mL/min : 2164-2 : mL/min
Default Result Unit: mL/min
Allowable Result Units: mL/hr  mL/min  L/hr  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: in
Allowable Units: cm  m  in  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
 


 
Online calculator: Creatinine Clearance Estimate by Cockcroft-Gault Equation
Source file: CreatinineCl_CG.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis
Associated ICD9-CM codes 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: Creat_Clear = Sex * ((140 - Age) / (Serum_Creat)) * (Weight / 72)
LOINC of Result: 33558-8 : mL/min : 2164-2 : mL/min
Default Result Unit: mL/min
Allowable Result Units: mL/hr  mL/min  L/hr  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0.85
Discrete variable option: Male Variable value: 1
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
 
 


 
Online calculator: Creatinine Clearance Estimate by Jelliffe Formula
Source file: CreatinineCl_Jelliffe.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis
Associated ICD9-CM codes 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Radio Button Variable: Sex
Discrete variable option: *Female Variable value: 0.9
Discrete variable option: Male Variable value: 1
 
Equation: CrCl_Normalized = Sex * (98 - (0.8 * (Age - 20))) / Serum_Creat
LOINC of Result: 12195-4 : mL/min/1.73sqM
Default Result Unit: mL/min/1.73 m2
Allowable Result Units:
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
 


 
Online calculator: Creatinine Clearance Estimate by Sanaka Formula (for older subjects with low muscle mass)
Source file: CreatinineCl_Sanaka.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis
Associated ICD9-CM codes 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: CrCl = (Weight * ((Mult_Factor * Plasma_Albumin) + Add_Factor)) / (100 * Serum_Creat)
LOINC of Result: 33558-8 : mL/min : 2164-2 : mL/min
Default Result Unit: mL/min
Allowable Result Units: mL/hr  mL/min  L/hr  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 60 yr
Maximum value: 92 yr
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
Variable: Plasma_Albumin
LOINC: 1751-7 : g/dL
Default Unit: g/dL_Alb
Allowable Units: g/dL_Alb  g/L_Alb  gm/dL_Alb  gm/L_Alb  mg/dL_Alb  mg/L_Alb  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
Minimum value: 24 kg
Maximum value: 61 kg
 
 


 
Online calculator: Creatinine Clearance Estimate for Changing Serum Creatinine
Source file: CrClChangingCr.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis; Y84.8 Other medical procedures as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure
Associated ICD9-CM codes 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: Creat_Clear = (140 - Age - 30 * (Creat_Day2 - Creat_Day1)) * Weight / (72* ((Creat_Day1 + Creat_Day2) / 2))
LOINC of Result: 33558-8 : mL/min : 2164-2 : mL/min
Default Result Unit: mL/min
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Creat_Day1
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
Variable: Creat_Day2
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
 


 
Online calculator: Creatinine Kinetics MultiCalc
Source file: CreatinineKinetics_MC.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis
Associated ICD9-CM codes 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: Creat_Excretion = (Vol_Urine * Creat_Urine) + (Vol_Dialysate * Creat_Dialysate)
Default Result Unit: mg/day
Allowable Result Units: mg/day  gm/day  
 
Equation: Creat_Degradation = 0.38 * Creat_Serum * Weight
Default Result Unit: mg/day
Allowable Result Units: mg/day  gm/day  
 
Equation: Lean_Body_Weight = (0.029 * (Creat_Excretion + Creat_Degradation)) + 7.38
Default Result Unit: kg
Allowable Result Units: mg  gm  kg  lb  
 
Variable: Vol_Urine
Default Unit: mL
Allowable Units: fL  mL  L  
 
Variable: Creat_Urine
LOINC: 35674-1 : mg/dL : 2161-8 : mg/dL : 14683-7 : mmol/L : 22726-4
Default Unit: mg/mL_UCr
Allowable Units: mg/dL_UCr  mg/mL_UCr  mmol/L_UCr  mcmol/L_UCr  
 
Variable: Vol_Dialysate
Default Unit: mL
Allowable Units: fL  mL  L  
 
Variable: Creat_Dialysate
Default Unit: mg/mL_UCr
Allowable Units: mg/dL_UCr  mg/mL_UCr  mmol/L_UCr  mcmol/L_UCr  
 
Variable: Creat_Serum
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
 


 
Online calculator: CSF IgG Index
Source file: CSFIgG.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes G35 Multiple sclerosis
Associated ICD9-CM codes 340 Multiple sclerosis

 
Equation: CSF_IgG_Index = ( CSF_IgG / CSF_Albumin ) / (Serum_IgG / (Serum_Albumin * 1000))
Default Result Unit: index
Allowable Result Units: none  index  #  number  logit  score  points  
 
Variable: CSF_IgG
LOINC: 2464-6 : mg/dL
Default Unit: mg/dL_IgG
Allowable Units: mg/dL_IgG  g/L_IgG  gm/L_IgG  
 
Variable: CSF_Albumin
LOINC: 1746-7 : mg/dL
Default Unit: mg/dL_Alb
Allowable Units: g/dL_Alb  g/L_Alb  gm/dL_Alb  gm/L_Alb  mg/dL_Alb  mg/L_Alb  
 
Variable: Serum_IgG
LOINC: 2465-3 : mg/dL
Default Unit: mg/dL_IgG
Allowable Units: mg/dL_IgG  g/L_IgG  gm/L_IgG  
 
Variable: Serum_Albumin
LOINC: 1751-7 : g/dL
Default Unit: g/dL_Alb
Allowable Units: g/dL_Alb  g/L_Alb  gm/dL_Alb  gm/L_Alb  mg/dL_Alb  mg/L_Alb  
 
 


 
Online calculator: CSF Protein Concentration Correction in Blood Contaminated CSF
Source file: CSFProtein.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes A87.9 Viral meningitis, unspecified; G03.9 Meningitis, unspecified; G03.1 Chronic meningitis; G04.2 Bacterial meningoencephalitis and meningomyelitis, not elsewhere classified; G00.9 Bacterial meningitis, unspecified
Associated ICD9-CM codes 320.9 Bacterial meningitis nos; 322.2 Chronic meningitis; 322.9 Meningitis nos; 047.9 Viral meningitis nos

 
Equation: Protein = Protein_CSF - (Protein_Serum * 1000 * (1 - HCT / 100) * RBC_CSF / (RBC_Blood * 1e6))
Default Result Unit: mg/dL
Allowable Result Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
Variable: Protein_CSF
Default Unit: mg/dL
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
Variable: Protein_Serum
Default Unit: g/dL
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
Variable: HCT
LOINC: 4544-3 : % : 20570-8 : % : 31100-1 : % : 4545-0 : %
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: RBC_CSF
Default Unit: /microL
Allowable Units: /microL  /mcL  #/microL  #/mcL  cells/microL  cells/mcL  x10(6)/L  x10^6/L  x10(3)/microL  x10^3/microL  x10(3)/mcL  x10^3/mcL  x10(9)/L  x10^9/L  x10(6)/microL  x10^6/microL  x10(6)/mcL  x10^6/mcL  x10(12)/L  x10^12/L  
 
Variable: RBC_Blood
LOINC: 789-8 : 10^6/microL : 790-6 : 10^9/microL
Default Unit: x10(6)/microL
Allowable Units: /microL  /mcL  #/microL  #/mcL  cells/microL  cells/mcL  x10(6)/L  x10^6/L  x10(3)/microL  x10^3/microL  x10(3)/mcL  x10^3/mcL  x10(9)/L  x10^9/L  x10(6)/microL  x10^6/microL  x10(6)/mcL  x10^6/mcL  x10(12)/L  x10^12/L  
 
 


 
Online calculator: CSF WBC Correction in Blood Contaminated CSF
Source file: CSF_WBC.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes A87.9 Viral meningitis, unspecified; G03.9 Meningitis, unspecified; G03.1 Chronic meningitis; G04.2 Bacterial meningoencephalitis and meningomyelitis, not elsewhere classified; G00.9 Bacterial meningitis, unspecified
Associated ICD9-CM codes 320.9 Bacterial meningitis nos; 322.2 Chronic meningitis; 322.9 Meningitis nos; 047.9 Viral meningitis nos

 
Equation: WBC = WBC_CSF - ( (WBC_Blood * RBC_CSF) / (RBC_Blood * 1000000))
LOINC of Result: 6690-2 : #/microL
Default Result Unit: cells/microL
Allowable Result Units: /microL  /mcL  #/microL  #/mcL  cells/microL  cells/mcL  x10(6)/L  x10^6/L  x10(3)/microL  x10^3/microL  x10(3)/mcL  x10^3/mcL  x10(9)/L  x10^9/L  x10(6)/microL  x10^6/microL  x10(6)/mcL  x10^6/mcL  x10(12)/L  x10^12/L  
 
Variable: WBC_CSF
Default Unit: cells/microL
Allowable Units: /microL  /mcL  #/microL  #/mcL  cells/microL  cells/mcL  x10(6)/L  x10^6/L  x10(3)/microL  x10^3/microL  x10(3)/mcL  x10^3/mcL  x10(9)/L  x10^9/L  x10(6)/microL  x10^6/microL  x10(6)/mcL  x10^6/mcL  x10(12)/L  x10^12/L  
 
Variable: WBC_Blood
Default Unit: cells/microL
Allowable Units: /microL  /mcL  #/microL  #/mcL  cells/microL  cells/mcL  x10(6)/L  x10^6/L  x10(3)/microL  x10^3/microL  x10(3)/mcL  x10^3/mcL  x10(9)/L  x10^9/L  x10(6)/microL  x10^6/microL  x10(6)/mcL  x10^6/mcL  x10(12)/L  x10^12/L  
 
Variable: RBC_CSF
Default Unit: cells/microL
Allowable Units: /microL  /mcL  #/microL  #/mcL  cells/microL  cells/mcL  x10(6)/L  x10^6/L  x10(3)/microL  x10^3/microL  x10(3)/mcL  x10^3/mcL  x10(9)/L  x10^9/L  x10(6)/microL  x10^6/microL  x10(6)/mcL  x10^6/mcL  x10(12)/L  x10^12/L  
 
Variable: RBC_Blood
LOINC: 789-8 : 10^6/microL : 790-6 : 10^9/microL
Default Unit: x10(12)/L
Allowable Units: /microL  /mcL  #/microL  #/mcL  cells/microL  cells/mcL  x10(6)/L  x10^6/L  x10(3)/microL  x10^3/microL  x10(3)/mcL  x10^3/mcL  x10(9)/L  x10^9/L  x10(6)/microL  x10^6/microL  x10(6)/mcL  x10^6/mcL  x10(12)/L  x10^12/L  
 
 


 
  D

 
Online calculator: Diabetes Risk Score (Type 2)
Source file: DiabetesRiskScore.cc
EBMcalc Version: 8.8
Associated ICD10-CM codes Z13.1 Encounter for screening for diabetes mellitus; O24.319 Unspecified pre-existing diabetes mellitus in pregnancy, unspecified trimester; E11.65 Type 2 diabetes mellitus with hyperglycemia
Associated ICD9-CM codes V77.1 Screen-diabetes mellitus; 648.00 Diabetes in preg-unspec; 250.02 Dmii wo cmp uncntrld

 
Equation: Terms = 6.322 - Sex - Rx_HTN - Rx_Steroids - (0.063 * Age) - BMI - FMH - Smoker
Default Result Unit: #
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Risk = 100 / (1 + eTo(Terms))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: -0.879
Discrete variable option: Male Variable value: 0
 
Radio Button Variable: Rx_HTN
Discrete variable option: On HTN meds Variable value: 1.222
Discrete variable option: No HTN meds Variable value: 0
 
Radio Button Variable: Rx_Steroids
Discrete variable option: On steroids Variable value: 2.191
Discrete variable option: Not on steroids Variable value: 0
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Radio Button Variable: BMI
Discrete variable option: Body Mass Index <25 Variable value: 0
Discrete variable option: 25 - 27.49 Variable value: 0.699
Discrete variable option: 27.5 - 29.99 Variable value: 1.97
Discrete variable option: ≥30 Variable value: 2.518
 
Radio Button Variable: FMH
Discrete variable option: No 1st degree family members with diabete Variable value: 0
Discrete variable option: Parent OR sib with DM Variable value: 0.728
Discrete variable option: Parent AND sib with DM Variable value: 0.753
 
Radio Button Variable: Smoker
Discrete variable option: Patient is a non smoker Variable value: 0
Discrete variable option: Patient used to smoke Variable value: -0.218
Discrete variable option: Patient is a smoker Variable value: 0.855
 
 


 
Online calculator: Diabetes Risk Self Assessment
Source file: DMSelfAssess.cc
EBMcalc Version: 17.1

 
Equation: BMI = (Weight/2.205) / power((Height/39.37), 2)
LOINC of Result: 39156-5 : kg/m^2 : 59576-9 : kg/m^2
 
Equation: BMI_Points = BMIP
 
Equation: Diabetes_Risk_Score = BMIP + Age + Sex + FMH + Active + HTN
 
Radio Button Variable: Age
Discrete variable option: <40 years Variable value: 0
Discrete variable option: 40-49 years Variable value: 1
Discrete variable option: 50-59 years Variable value: 2
Discrete variable option: ≥60 years Variable value: 3
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0
Discrete variable option: Male Variable value: 1
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: lb
Allowable Units: kg  lb  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: in
Allowable Units: cm  m  in  
 
 


 
Online calculator: Diffusing capacity for carbon monoxide (DLCO) corrected for anemia
Source file: DLCO_Anemia.eq
EBMcalc Version: 12.2
Associated ICD10-CM codes R94.2 Abnormal results of pulmonary function studies; D64.9 Anemia, unspecified
Associated ICD9-CM codes 285.9 Anemia nos; 794.2 Abn pulmonary func study

 
Equation: DLCO_Predicted_Corrected = DLCO_Predicted_Corrected
Default Result Unit: mL CO (STPD)
Allowable Result Units:
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 1 yr
Maximum value: 120 yr
 
Variable: Hgb
LOINC: 718-7 : g/dL : 718-7 : gm/dL : 59260-0 : mmol/L
Default Unit: g/dL
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
Minimum value: 5 g/dL
Maximum value: 20 g/dL
 
Variable: DLCO_Predicted
Default Unit: mL CO (STPD)
Allowable Units: mL CO (STPD)
 
 


 
Online calculator: Diffusing capacity for carbon monoxide (DLCO) correction of predicted value for anemia (SI units)
Source file: DLCO_Anemia_SI.eq
EBMcalc Version: 12.2

 
Equation: DLCO_Predicted_Corrected = DLCO_Predicted_Corrected
Default Result Unit: mmol CO per min per kPa
Allowable Result Units:
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 1 yr
Maximum value: 120 yr
 
Variable: Hgb
LOINC: 718-7 : g/dL : 718-7 : gm/dL : 59260-0 : mmol/L
Default Unit: g/L
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
Minimum value: 50 g/L
Maximum value: 200 g/L
 
Variable: DLCO_Predicted
Default Unit: mmol CO per min per kPa
Allowable Units: mmol CO per min per kPa
 
 


 
Online calculator: Digitalis Body Load
Source file: DigoxinLoad.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes I48.91 Unspecified atrial fibrillation; I50.9 Heart failure, unspecified
Associated ICD9-CM codes 428.0 Chf nos; 427.31 Atrial fibrillation

 
Equation: DBL = Digoxin_Conc * 5.6 * Weight / 1000
Default Result Unit: mg
Allowable Result Units: mg  gm  kg  lb  
 
Variable: Digoxin_Conc
Default Unit: ng/mL
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
 


 
Online calculator: Dose Adjustment for Body Surface Area
Source file: DoseAdjustmentForBSA.eq
EBMcalc Version: 8.7

 
Equation: BSA = 0.007184 * power(Height, 0.725) * power(Weight, 0.425)
Default Result Unit: m2
Allowable Result Units:
 
Equation: Adjusted_Dose = Standard_Dose * BSA / 1.73
Default Result Unit: mg
Allowable Result Units: mcg  mg  gm  
 
Variable: Standard_Dose
Default Unit: mg
Allowable Units: mcg  mg  gm  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: cm  m  in  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
 
 


 
Online calculator: Dose Driven IV-Drip Rate Calculator
Source file: DoseDrivenDripRate.eq
EBMcalc Version: 8.9

 
Equation: IV_Drip_Rate = (60 * Desired_Dose * Weight * Bag_Volume) / (1000 * Drug_In_Bag)
Default Result Unit: mL/hr
Allowable Result Units: mL/hr  mL/min  L/hr  
 
Variable: Desired_Dose
Default Unit: mcg/kg/min
Allowable Units: mg/kg/min  mcg/kg/min  gm/kg/min  mg/kg/hr  mcg/kg/hr  gm/kg/hr  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
 
Variable: Drug_In_Bag
Default Unit: mg
Allowable Units: mcg  mg  gm  
 
Variable: Bag_Volume
Default Unit: mL
Allowable Units: mL  L  
 
 


 
  E

 
Online calculator: Endotracheal tube size for children (Age 1 to 8 years)
Source file: PediatricETTubeSize.eq
EBMcalc Version: 10.3

 
Equation: Uncuffed_Endotracheal_Tube_Size = Uncuffed_Endotracheal_Tube_Size
Default Result Unit: mm (ID)
Allowable Result Units:
 
Equation: Cuffed_Endotracheal_Tube_Size = Cuffed_Endotracheal_Tube_Size
Default Result Unit: mm (ID)
Allowable Result Units:
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 1 yr
Maximum value: 8 yr
 
 


 
Online calculator: Energy Loss Index and the Severity of Asymptomatic Aortic Stenosis
Source file: ELI.eq
EBMcalc Version: 13.2
Associated ICD10-CM codes Q25.3 Supravalvular aortic stenosis; I06.2 Rheumatic aortic stenosis with insufficiency; I06.0 Rheumatic aortic stenosis; Q24.4 Congenital subaortic stenosis
Associated ICD9-CM codes 746.81 Cong subaortic stenosis; 396.0 Mitral/aortic stenosis; 395.0 Rheumat aortic stenosis; 395.2 Rheum aortic sten/insuff

 
Equation: BSA = 0.007184 * power(Height, 0.725) * power(Weight, 0.425)
Default Result Unit: sqm
Allowable Result Units: sqrcm  cm^2  sqcm  sqrm  sqm  
 
Equation: ELI = AVA * Aa / (Aa - AVA) / BSA
Default Result Unit: sqcm/sqm
Allowable Result Units: sqcm/sqm  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
Variable: AVA
Default Unit: sqcm
Allowable Units: sqrcm  cm^2  sqcm  sqrm  sqm  
 
Variable: Aa
Default Unit: sqcm
Allowable Units: sqrcm  cm^2  sqcm  sqrm  sqm  
 
 


 
Online calculator: England Fraser Index for Differentiating Beta-thalassemia Trait from Iron-deficiency
Source file: EnglandFraser.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes D56.9 Thalassemia, unspecified; D56.3 Thalassemia minor; D50.9 Iron deficiency anemia, unspecified; D50.8 Other iron deficiency anemias; D50.1 Sideropenic dysphagia; D50.8 Other iron deficiency anemias
Associated ICD9-CM codes 282.4 Thalassemias; 280.1 Iron def anemia dietary; 280.8 Iron defic anemia nec; 280.9 Iron defic anemia nos

 
Equation: England_Fraser_Index = MCV - (Hgb * 5) - RBC - k
Default Result Unit: index
Allowable Result Units: none  index  #  number  logit  score  points  
 
Variable: MCV
Default Unit: fL
Allowable Units: fL  mL  L  
 
Variable: Hgb
LOINC: 718-7 : g/dL : 718-7 : gm/dL : 59260-0 : mmol/L
Default Unit: g/dL
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
Variable: RBC
LOINC: 789-8 : 10^6/microL : 790-6 : 10^9/microL
Default Unit: x10(12)/L
Allowable Units: /microL  /mcL  #/microL  #/mcL  cells/microL  cells/mcL  x10(6)/L  x10^6/L  x10(3)/microL  x10^3/microL  x10(3)/mcL  x10^3/mcL  x10(9)/L  x10^9/L  x10(6)/microL  x10^6/microL  x10(6)/mcL  x10^6/mcL  x10(12)/L  x10^12/L  
 
 


 
Online calculator: Epidural Formulation Compounding Calculator
Source file: EpiduralCompounding.eq
EBMcalc Version: 8.9

 
Equation: Opioid_Volume = Desired_Opioid_Concentration * Desired_Volume / Stock_Opioid_Concentration
Default Result Unit: mL
Allowable Result Units: mL  L  
 
Equation: Caine_Volume = Desired_Caine_Percent * Desired_Volume / Stock_Caine_Percent
Default Result Unit: mL
Allowable Result Units: mL  L  
 
Equation: Diluent_Volume = Desired_Volume - Caine_Volume - Opioid_Volume
Default Result Unit: mL
Allowable Result Units: mL  L  
 
Variable: Desired_Volume
Default Unit: mL
Allowable Units: mL  L  
 
Variable: Stock_Opioid_Concentration
Default Unit: mg/mL
Allowable Units: mg%  mg/dL  gm/dL  gm/L  mg/mL  
 
Variable: Desired_Opioid_Concentration
Default Unit: mg/mL
Allowable Units: mg%  mg/dL  gm/dL  gm/L  mg/mL  
 
Variable: Stock_Caine_Percent
Default Unit: %
Allowable Units: fraction  ratio  %  
 
Variable: Desired_Caine_Percent
Default Unit: %
Allowable Units: fraction  ratio  %  
 
 


 
Online calculator: Epoprostenol (Flolan) Infusion Rate Calculator
Source file: EpoprostenolInfusion.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes M34.81 Systemic sclerosis with lung involvement; I27.0 Primary pulmonary hypertension; I26.09 Other pulmonary embolism with acute cor pulmonale; I27.9 Pulmonary heart disease, unspecified; I27.81 Cor pulmonale (chronic)
Associated ICD9-CM codes 416.9 Chr pulmon heart dis nos; 415.0 Acute cor pulmonale; 416.0 Prim pulm hypertension; 517.2 Syst sclerosis lung dis

 
Equation: Infusion_Rate = Dose * Weight * 60 / Concentration
Default Result Unit: mL/hr
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: Dose
Default Unit: ng/kg/min
Allowable Units: ng/kg/min  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
Variable: Concentration
Default Unit: ng/mL
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
 


 
Online calculator: Esophageal Varices: Prediction from Platelet Count to Spleen Diameter Ratio
Source file: EsophVaricesRisk.cc
EBMcalc Version: 8.7
Associated ICD10-CM codes I85.00 Esophageal varices without bleeding; I85.10 Secondary esophageal varices without bleeding; I85.01 Esophageal varices with bleeding
Associated ICD9-CM codes 456.0 Esophag varices w bleed; 456.21 Esoph varice oth dis nos; 456.1 Esoph varices w/o bleed

 
Equation: PCSD_Ratio = Platelet_Count / Spleen_Diameter
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Platelet_Count
LOINC: 777-3 : x10(3)/mcL : 26515-7 : 10^9/L
Default Unit: /microL
Allowable Units: /microL  /mcL  #/microL  #/mcL  cells/microL  cells/mcL  x10(6)/L  x10^6/L  x10(3)/microL  x10^3/microL  x10(3)/mcL  x10^3/mcL  x10(9)/L  x10^9/L  x10(6)/microL  x10^6/microL  x10(6)/mcL  x10^6/mcL  x10(12)/L  x10^12/L  
 
Variable: Spleen_Diameter
Default Unit: mm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
 


 
Online calculator: Estimated 24 Hour Urine Protein Excretion in Pregnancy (from spot urine protein to creatinine ratio)
Source file: UrinaryProteinExcretionPregnancy.eq
EBMcalc Version: 16.4

 
Equation: Spot_urine_protein_to_creatinine_ratio = Spot_urine_protein / Spot_urine_creatinine
Default Result Unit: mg/mg
Allowable Result Units:
 
Equation: Estimated_24_hour_urine_protein_excretion = (Spot_urine_protein_to_creatinine_ratio * 1373.5) - 60.508
Default Result Unit: mg
Allowable Result Units: mg  gm  kg  lb  
 
Variable: Spot_urine_protein
Default Unit: mg/dL
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
Variable: Spot_urine_creatinine
Default Unit: mg/dL_UCr
Allowable Units: mg/dL_UCr  mg/mL_UCr  mmol/L_UCr  mcmol/L_UCr  
Minimum value: 10 mg/dL_UCr
Maximum value: 500 mg/dL_UCr
 
 


 
Online calculator: Estimated Blood Volume
Source file: EstimatedBloodVolume.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes D62 Acute posthemorrhagic anemia
Associated ICD9-CM codes 285.1 Ac posthemorrhag anemia

 
Equation: Blood_Vol = Weight * Avg_Blood_Vol
Default Result Unit: mL
Allowable Result Units: fL  mL  L  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
Radio Button Variable: Avg_Blood_Vol
Discrete variable option: Men Variable value: 75
Discrete variable option: Women Variable value: 65
Discrete variable option: Infants Variable value: 80
Discrete variable option: Neonates Variable value: 85
Discrete variable option: Premature Neonates Variable value: 96
 
 


 
Online calculator: Estimated Date of Delivery (EDD) Pregnancy Calculator
Source file: EstimatedDateDelivery.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes O99.89 Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium; O26.90 Pregnancy related conditions, unspecified, unspecified trimester; Z33.1 Pregnant state, incidental; O09.00 Supervision of pregnancy with history of infertility, unspecified trimester; O09.291 Supervision of pregnancy with other poor reproductive or obstetric history, first trimester; O48.1 Prolonged pregnancy
Associated ICD9-CM codes 645.20 Prolonged preg-unsp; 645.21 Prolonged preg-del; 645.23 Prolonged preg-antepar; V23.5 Preg w poor reproduct hx; V23.49 Preg w poor obs hx nec; V23.0 Preg w hx of infertility; V22.2 Preg state, incidental; V72.4 Preg exam-preg unconfirm; 646.90 Preg compl nos-unspec; 646.93 Preg compl nos-antepart; 633.01 Abd preg w intraut preg

 
Variable: Gestational_Age_by_US
Default Unit: weeks
Allowable Units: days  weeks  
Minimum value: 2 weeks
Maximum value: 40 weeks
 
 


 
Online calculator: Estimated Delivery Date (Patient information)
Source file: EstimatedDateDeliveryPatient.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes O99.89 Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium; O26.90 Pregnancy related conditions, unspecified, unspecified trimester; Z33.1 Pregnant state, incidental; O09.00 Supervision of pregnancy with history of infertility, unspecified trimester; O09.291 Supervision of pregnancy with other poor reproductive or obstetric history, first trimester; O48.1 Prolonged pregnancy
Associated ICD9-CM codes 645.20 Prolonged preg-unsp; 645.21 Prolonged preg-del; 645.23 Prolonged preg-antepar; V23.5 Preg w poor reproduct hx; V23.49 Preg w poor obs hx nec; V23.0 Preg w hx of infertility; V22.2 Preg state, incidental; V72.4 Preg exam-preg unconfirm; 646.90 Preg compl nos-unspec; 646.93 Preg compl nos-antepart; 633.01 Abd preg w intraut preg

 
 


 
  F

 
Online calculator: False Negative Rate from Sensitivity and Prevalence
Source file: FalseNegativeRateSSP.eq
EBMcalc Version: 8.8

 
Equation: True_Pos = Sensitivity * Prevalence
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: False_Neg = (1 - Sensitivity) * Prevalence
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Pre_Test_Odds = Prevalence / (1 - Prevalence)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: False_Neg_Rate = 100 * False_Neg / (True_Pos + False_Neg)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Prevalence
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
Variable: Sensitivity
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
 


 
Online calculator: False Negative Ratio from Sensitivity and Prevalence
Source file: FalseNegativeRatioSP.eq
EBMcalc Version: 8.8

 
Equation: False_Neg = (1 - Sensitivity) * Prevalence
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Prevalence
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
Variable: Sensitivity
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
 


 
Online calculator: False Positive Rate from Specificity and Prevalence
Source file: FalsePositiveRateSSP.eq
EBMcalc Version: 8.8

 
Equation: False_Pos = (1 - Specificity) * (1 - Prevalence)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: True_Neg = Specificity * (1 - Prevalence)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: False_Pos_Rate = 100 * False_Pos / (False_Pos + True_Neg)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Prevalence
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
Variable: Specificity
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
 


 
Online calculator: False Positive Ratio from Specificity and Prevalence
Source file: FalsePositiveRatioSP.eq
EBMcalc Version: 8.8

 
Equation: False_Pos = (1 - Specificity) * (1 - Prevalence)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Prevalence
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
Variable: Specificity
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
 


 
Online calculator: Fat Free Mass, a Measure of Lean Body Weight
Source file: FFM.eq
EBMcalc Version: 15.1
Associated ICD10-CM codes R63.6 Underweight; R63.5 Abnormal weight gain; R63.4 Abnormal weight loss; Z13.89 Encounter for screening for other disorder; E66.9 Obesity, unspecified; E66.01 Morbid (severe) obesity due to excess calories
Associated ICD9-CM codes 278.01 Morbid obesity; 278.00 Obesity nos; V77.8 Screening for obesity; 783.21 Abnormal loss of weight; 783.1 Abnormal weight gain; 783.22 Underweight

 
Equation: Body_Mass_Index = Actual_Weight / sq(Height / 100)
LOINC of Result: 39156-5 : kg/m^2 : 59576-9 : kg/m^2
Default Result Unit: kg/m2
Allowable Result Units:
 
Equation: Fat_Free_Mass = (9270 * Actual_Weight) / ((X * Body_Mass_Index) + Y)
Default Result Unit: kg
Allowable Result Units: kg  lb  
 
Variable: Actual_Weight
Default Unit: kg
Allowable Units: kg  lb  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: cm  m  in  
 
 


 
Online calculator: Fear Avoidance Beliefs Questionaire (FABQ) about Physical Activity
Source file: FearAvoidActivity.cc
EBMcalc Version: 8.7
Associated ICD10-CM codes Z71.1 Person with feared health complaint in whom no diagnosis is made; F40.232 Fear of other medical care
Associated ICD9-CM codes V65.5 Persn w feared complaint

 
Equation: FABQ = Q2 + Q3 + Q4 + Q5
Default Result Unit: points
Allowable Result Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Fear Avoidance Beliefs Questionaire (FABQ) about Work
Source file: FearAvoidWork.cc
EBMcalc Version: 8.7
Associated ICD10-CM codes Z71.1 Person with feared health complaint in whom no diagnosis is made; F40.232 Fear of other medical care
Associated ICD9-CM codes V65.5 Persn w feared complaint

 
Equation: FABQ = Q6 + Q7 + Q9 + Q10 + Q11 + Q12 + Q15
Default Result Unit: points
Allowable Result Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Fentanyl Patch Initial Dosing Estimate Based on Prior Narcotic Dosing
Source file: FentanylDosing.qc
EBMcalc Version: 8.7
Associated ICD10-CM codes G89.29 Other chronic pain; G89.4 Chronic pain syndrome; G89.21 Chronic pain due to trauma
Associated ICD9-CM codes 338.29 Other chronic pain; 338.4 Chronic pain syndrome; 338.2 Chronic pain

 
Equation: Oral_Morphine_Equiv = 60 * Daily_Dosage / Medicine_Potency
Default Result Unit: mg/day
Allowable Result Units: mg/day  gm/day  
 
Variable: Daily_Dosage
Default Unit: mg/day
Allowable Units: mg/day  gm/day  
 
 


 
Online calculator: Fractional Excretion of Amylase (Amylase to creatinine clearance ratio)
Source file: FractExcAmylase.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes E16.9 Disorder of pancreatic internal secretion, unspecified; E16.8 Other specified disorders of pancreatic internal secretion; K86.9 Disease of pancreas, unspecified; K86.1 Other chronic pancreatitis; K85.9 Acute pancreatitis, unspecified
Associated ICD9-CM codes 577.0 Acute pancreatitis; 577.1 Chronic pancreatitis; 577.9 Pancreatic disease nos; 251.8 Pancreatic disorder nec; 251.9 Pancreatic disorder nos

 
Equation: FE_Amylase = 100 * (Urine_Amylase * Plasma_Creat) / (Plasma_Amylase * Urine_Creat)
LOINC of Result: 30077-2 : % : 1811-9 : %
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Urine_Amylase
LOINC: 1799-6 : u/L
Default Unit: u/L_UAmy
Allowable Units: u/L_UAmy  U/L_UAmy  IU/L_UAmy  mcKat/L_UAmy  
 
Variable: Plasma_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
Variable: Plasma_Amylase
LOINC: 1798-8 : u/L
Default Unit: u/L_Amy
Allowable Units: u/L_Amy  U/L_Amy  IU/L_Amy  mcKat/L_Amy  
 
Variable: Urine_Creat
LOINC: 35674-1 : mg/dL : 2161-8 : mg/dL : 14683-7 : mmol/L : 22726-4
Default Unit: mg/dL_UCr
Allowable Units: mg/dL_UCr  mg/mL_UCr  mmol/L_UCr  mcmol/L_UCr  
 
 


 
Online calculator: Fractional Excretion of Magnesium (SI units)
Source file: FractExcMg_SI.eq
EBMcalc Version: 11.3
Associated ICD10-CM codes E83.49 Other disorders of magnesium metabolism; E61.2 Magnesium deficiency; E83.40 Disorders of magnesium metabolism, unspecified; Z88.1 Allergy status to other antibiotic agents status
Associated ICD9-CM codes 275.2 Dis magnesium metabolism; E930.0 Adv eff antibiotic nos; E930.0 Adv eff antibiotics nec; V14.1 Hx-antibiot allergy nec

 
Equation: FE_Mg = 100 * (Urine_Mg * Plasma_Cr) / (0.7 * Plasma_Mg * Urine_Cr)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Urine_Mg
LOINC: 19124-7 : mg/dL : 32024-2 : mg/dL : 2598-1 : mmol/L
Default Unit: mmol/L_UMg
Allowable Units: mg/dL_UMg  mmol/L_UMg  mEq/L_UMg  
 
Variable: Plasma_Mg
LOINC: 2601-3 : mmol/L : 19123-9 : mg/dL
Default Unit: mmol/L_Mg
Allowable Units: mg/dL_Mg  mmol/L_Mg  mEq/L_Mg  
 
Variable: Urine_Cr
LOINC: 35674-1 : mg/dL : 2161-8 : mg/dL : 14683-7 : mmol/L : 22726-4
Default Unit: mmol/L_UCr
Allowable Units: mg/dL_UCr  mg/mL_UCr  mmol/L_UCr  mcmol/L_UCr  
 
Variable: Plasma_Cr
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mmol/L_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
 


 
Online calculator: Fractional Excretion of Magnesium
Source file: FractExcMg.eq
EBMcalc Version: 11.3
Associated ICD10-CM codes E83.49 Other disorders of magnesium metabolism; E61.2 Magnesium deficiency; E83.40 Disorders of magnesium metabolism, unspecified; Z88.1 Allergy status to other antibiotic agents status
Associated ICD9-CM codes 275.2 Dis magnesium metabolism; E930.0 Adv eff antibiotic nos; E930.0 Adv eff antibiotics nec; V14.1 Hx-antibiot allergy nec

 
Equation: FE_Mg = 100 * (Urine_Mg * Plasma_Cr) / (0.7 * Plasma_Mg * Urine_Cr)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Urine_Mg
LOINC: 19124-7 : mg/dL : 32024-2 : mg/dL : 2598-1 : mmol/L
Default Unit: mg/dL_UMg
Allowable Units: mg/dL_UMg  mmol/L_UMg  mEq/L_UMg  
 
Variable: Plasma_Mg
LOINC: 2601-3 : mmol/L : 19123-9 : mg/dL
Default Unit: mg/dL_Mg
Allowable Units: mg/dL_Mg  mmol/L_Mg  mEq/L_Mg  
 
Variable: Urine_Cr
LOINC: 35674-1 : mg/dL : 2161-8 : mg/dL : 14683-7 : mmol/L : 22726-4
Default Unit: mg/dL_UCr
Allowable Units: mg/dL_UCr  mg/mL_UCr  mmol/L_UCr  mcmol/L_UCr  
 
Variable: Plasma_Cr
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
 


 
Online calculator: Fractional Excretion of Sodium (FENa)
Source file: FractExcSodium.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes N17.2 Acute kidney failure with medullary necrosis; N19 Unspecified kidney failure; N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified
Associated ICD9-CM codes 276.5 Hypovolemia; 584.9 Acute renal failure nos; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos; 586 Renal failure nos; 583.7 Nephr nos/medull necros

 
Equation: FE_Na = (Urine_Na / Serum_Na) / (Urine_Cr / Serum_Cr) * 100
LOINC of Result: 49135-7 : %
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Urine_Na
LOINC: 2955-3 : mEq/L : 35678-2 : mEq/L : 2955-3 : mmol/L : 35678-2 : mmol/L
Default Unit: mEq/L_UNa
Allowable Units: mEq/L_UNa  mmol/L_UNa  
 
Variable: Serum_Na
LOINC: 2951-2 : mmol/L : 2947-0 : mEq/L : 32340-2 : mEq/L : 39791-9 : mEq/L
Default Unit: mEq/L_Na
Allowable Units: mEq/L_Na  mmol/L_Na  
 
Variable: Urine_Cr
LOINC: 35674-1 : mg/dL : 2161-8 : mg/dL : 14683-7 : mmol/L : 22726-4
Default Unit: mg/dL_UCr
Allowable Units: mg/dL_UCr  mg/mL_UCr  mmol/L_UCr  mcmol/L_UCr  
 
Variable: Serum_Cr
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
 


 
Online calculator: Fractional Excretion of Sodium (FENa, SI units)
Source file: FractExcSodium_SI.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes N17.2 Acute kidney failure with medullary necrosis; N19 Unspecified kidney failure; N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified
Associated ICD9-CM codes 276.5 Hypovolemia; 584.9 Acute renal failure nos; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos; 586 Renal failure nos; 583.7 Nephr nos/medull necros

 
Equation: FE_Na = (Urine_Na / Serum_Na) / (Urine_Cr / Serum_Cr) * 100
LOINC of Result: 49135-7 : %
Default Result Unit: %
Allowable Result Units: fraction  ratio  %  
 
Variable: Urine_Na
LOINC: 2955-3 : mEq/L : 35678-2 : mEq/L : 2955-3 : mmol/L : 35678-2 : mmol/L
Default Unit: mmol/L_UNa
Allowable Units: mEq/L_UNa  mmol/L_UNa  
 
Variable: Serum_Na
LOINC: 2951-2 : mmol/L : 2947-0 : mEq/L : 32340-2 : mEq/L : 39791-9 : mEq/L
Default Unit: mmol/L_Na
Allowable Units: mEq/L_Na  mmol/L_Na  
 
Variable: Urine_Cr
LOINC: 35674-1 : mg/dL : 2161-8 : mg/dL : 14683-7 : mmol/L : 22726-4
Default Unit: mcmol/L_UCr
Allowable Units: mg/dL_UCr  mg/mL_UCr  mmol/L_UCr  mcmol/L_UCr  
 
Variable: Serum_Cr
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mcmol/L_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
 


 
Online calculator: Fractional Excretion of Urate
Source file: FractExcUrate.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes Z13.89 Encounter for screening for other disorder; M10.40 Other secondary gout, unspecified site; M10.9 Gout, unspecified
Associated ICD9-CM codes 274.9 Gout nos; 274.89 Gout w manifestation nec; V77.5 Screening for gout

 
Equation: FE_Urate = (Urine_Urate / Serum_Urate) / (Urine_Cr / Serum_Cr) * 100
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Urine_Urate
LOINC: 14934-4 : mcmol/L : 3086-6 : mg/dL
Default Unit: mg/dL_Urate
Allowable Units: mg/dL_Urate  mcmol/L_Urate  
 
Variable: Serum_Urate
LOINC: 14933-6 : mcmol/L : 3084-1 : mg/dL
Default Unit: mg/dL_UUrate
Allowable Units: mg/dL_UUrate  mcmol/L_UUrate  
 
Variable: Urine_Cr
LOINC: 35674-1 : mg/dL : 2161-8 : mg/dL : 14683-7 : mmol/L : 22726-4
Default Unit: mg/dL_UCr
Allowable Units: mg/dL_UCr  mg/mL_UCr  mmol/L_UCr  mcmol/L_UCr  
 
Variable: Serum_Cr
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
 


 
Online calculator: Friedewald Equation for Low Density Lipoprotein (LDL-C)
Source file: Friedewald.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes E78.2 Mixed hyperlipidemia; E78.5 Hyperlipidemia, unspecified; E78.4 Other hyperlipidemia
Associated ICD9-CM codes 272.4 Hyperlipidemia nec/nos; 272.2 Mixed hyperlipidemia

 
Equation: LDL = Total_Chol - (Triglyceride / 5) - HDL
LOINC of Result: 13457-7 : mg/dL : 18262-6 : mg/dL : 39469-2 : mmol/L
Default Result Unit: mg/dL_LDL
Allowable Result Units: mg/dL_LDL  mmol/L_LDL  
 
Variable: Total_Chol
LOINC: 2093-3 : mg/dL : 14647-2 : mmol/L
Default Unit: mg/dL_Chol
Allowable Units: mg/dL_Chol  mmol/L_Chol  
 
Variable: HDL
LOINC: 2085-9 : mg/dL : 14646-4 : mmol/L
Default Unit: mg/dL_HDL
Allowable Units: mg/dL_HDL  mmol/L_HDL  
 
Variable: Triglyceride
LOINC: 2571-8 : mg/dL : 3043-7 : mg/dL : 14927-8 : mmol/L : 70218-3 : mmol/L
Default Unit: mg/dL_Trig
Allowable Units: mg/dL_Trig  mmol/L_Trig  
Maximum value: 400 mg/dL_Trig
 
 


 
Online calculator: Friedewald Equation for Low Density Lipoprotein (LDL-C, SI units)
Source file: Friedewald_SI.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes E78.2 Mixed hyperlipidemia; E78.5 Hyperlipidemia, unspecified; E78.4 Other hyperlipidemia
Associated ICD9-CM codes 272.4 Hyperlipidemia nec/nos; 272.2 Mixed hyperlipidemia

 
Equation: LDL = Total_Chol - (Triglyceride / 2.2) - HDL
LOINC of Result: 13457-7 : mg/dL : 18262-6 : mg/dL : 39469-2 : mmol/L
Default Result Unit: mmol/L_LDL
Allowable Result Units: mg/dL_LDL  mmol/L_LDL  
 
Variable: Total_Chol
LOINC: 2093-3 : mg/dL : 14647-2 : mmol/L
Default Unit: mmol/L_Chol
Allowable Units: mg/dL_Chol  mmol/L_Chol  
 
Variable: HDL
LOINC: 2085-9 : mg/dL : 14646-4 : mmol/L
Default Unit: mmol/L_HDL
Allowable Units: mg/dL_HDL  mmol/L_HDL  
 
Variable: Triglyceride
LOINC: 2571-8 : mg/dL : 3043-7 : mg/dL : 14927-8 : mmol/L : 70218-3 : mmol/L
Default Unit: mmol/L_Trig
Allowable Units: mg/dL_Trig  mmol/L_Trig  
Maximum value: 4.499 mmol/L_Trig
 
 


 
Online calculator: Functional Residual Capacity
Source file: FunctResCap.eq
EBMcalc Version: 8.7

 
Equation: Func_Res_Cap = Exp_Reserve_Vol + Residual_Vol
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Variable: Exp_Reserve_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Residual_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
 


 
  G

 
Online calculator: Gail Model for 5 Year Risk of Breast Cancer (1999 paper)
Source file: Gail99.cc
EBMcalc Version: 8.7
Associated ICD10-CM codes C50.919 Malignant neoplasm of unspecified site of unspecified female breast; C50.819 Malignant neoplasm of overlapping sites of unspecified female breast; N63 Unspecified lump in breast; Z85.3 Personal history of malignant neoplasm of breast; D49.3 Neoplasm of unspecified behavior of breast
Associated ICD9-CM codes 239.3 Breast neoplasm nos; V10.3 Hx of breast malignancy; 611.72 Lump or mass in breast; 174.8 Malign neopl breast nec; 174.9 Malign neopl breast nos

 
Equation: Relative_Risk = Age_Menarche * Num_Biops * Age_FLB_Num_Rels * Atyp_Hyper
 
Equation: Five_Year_Risk = Relative_Risk * Baseline_Age_Race
 
Radio Button Variable: Age_Menarche
Discrete variable option: Age at menarche >=14 years old Variable value: 1.00
Discrete variable option: 12-13 years old Variable value: 1.10
Discrete variable option: <12 years old Variable value: 1.21
 
Radio Button Variable: Atyp_Hyper
Discrete variable option: No biopsies Variable value: 1.00
Discrete variable option: At least one biopsy and no atypical hyperplasia found in any biopsy specimen Variable value: 0.93
Discrete variable option: No atypical hyperplasia found and hyperplasia status unknown for at least one biopsy specimen Variable value: 1.00
Discrete variable option: Atypical hyperplasia found in at least one biopsy specimen Variable value: 1.82
 
 


 
Online calculator: Gail Model for 5 Year Risk of Breast Cancer in Black Women (2007)
Source file: Gail07.cc
EBMcalc Version: 8.7
Associated ICD10-CM codes C50.919 Malignant neoplasm of unspecified site of unspecified female breast; C50.819 Malignant neoplasm of overlapping sites of unspecified female breast; N63 Unspecified lump in breast; Z85.3 Personal history of malignant neoplasm of breast; D49.3 Neoplasm of unspecified behavior of breast
Associated ICD9-CM codes 239.3 Breast neoplasm nos; V10.3 Hx of breast malignancy; 611.72 Lump or mass in breast; 174.8 Malign neopl breast nec; 174.9 Malign neopl breast nos

 
Equation: Rel_Risk = Menarche * Num_Biops * Age_FLB_Num_Rels * Atyp_Hyper
 
Equation: Five_Year_Risk = Rel_Risk * Baseline_Risk_For_Age
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Radio Button Variable: Menarche
Discrete variable option: Age at menarche ≥14 years old Variable value: 1.00
Discrete variable option: Age at menarche <14 years old Variable value: 1.31
 
Radio Button Variable: Atyp_Hyper
Discrete variable option: No biopsies Variable value: 1.00
Discrete variable option: At least one biopsy and no atypical hyperplasia found in any biopsy specimen Variable value: 0.93
Discrete variable option: No atypical hyperplasia found and hyperplasia status unknown for at least one biopsy specimen Variable value: 1.00
Discrete variable option: Atypical hyperplasia found in at least one biopsy specimen Variable value: 1.82
 
 


 
Online calculator: Gail Model for Predicting Individual Breast Cancer Risk
Source file: GailModel.cc
EBMcalc Version: 8.7~1989
Associated ICD10-CM codes C50.919 Malignant neoplasm of unspecified site of unspecified female breast; C50.819 Malignant neoplasm of overlapping sites of unspecified female breast; N63 Unspecified lump in breast; Z85.3 Personal history of malignant neoplasm of breast; D49.3 Neoplasm of unspecified behavior of breast
Associated ICD9-CM codes 239.3 Breast neoplasm nos; V10.3 Hx of breast malignancy; 611.72 Lump or mass in breast; 174.8 Malign neopl breast nec; 174.9 Malign neopl breast nos

 
Equation: Odds_Ratio = eTo((0.09401 * Age_Menarche) + (0.52926 * Num_Biops) + (0.21863 * Age_FLB) + (0.9583 * Num_Rels) + (0.01081 * Age_Cat) - (0.28804 * Num_Biops * Age_Cat) - (0.19081 * Age_FLB * Num_Rels) - 0.74948)
 
Radio Button Variable: Age_Cat
Discrete variable option: Age <50 years old Variable value: 0
Discrete variable option: Age ≥50 years old Variable value: 1
 
Radio Button Variable: Age_Menarche
Discrete variable option: Menarch ≥14 years old Variable value: 0
Discrete variable option: 12-13 years old Variable value: 1
Discrete variable option: <12 years old Variable value: 2
 
Radio Button Variable: Num_Biops
Discrete variable option: No prior biopsies Variable value: 0
Discrete variable option: 1 prior negative biopsy Variable value: 1
Discrete variable option: 2 or more prior negative biopsies Variable value: 2
 
Radio Button Variable: Age_FLB
Discrete variable option: Age at 1st live birth <20 Variable value: 0
Discrete variable option: Age 20 - 24 Variable value: 1
Discrete variable option: Age 25 - 29 or nulliparous Variable value: 2
Discrete variable option: Age ≥30 Variable value: 3
 
Radio Button Variable: Num_Rels
Discrete variable option: No breast CA in sisters or mother Variable value: 0
Discrete variable option: 1 sister or mother with Ca Variable value: 1
Discrete variable option: 2 or more sisters / mother with Ca Variable value: 2
 
 


 
Online calculator: Gentamicin and Tobramycin Dosing to Produce Desired Peak and Trough Levels
Source file: GentTobraDosingForLevels.cp
EBMcalc Version: 8.9

 
Equation: IBW = Math.abs(Height > 60) * (2.3 * (Height - 60)) + IBW_Sex
Default Result Unit: kg
Allowable Result Units: kg  lb  
 
Equation: DW = Math.abs(Weight > (1.2 * IBW)) * (0.4 * (Weight - IBW)) + IBW
Default Result Unit: kg
Allowable Result Units: kg  lb  
 
Equation: CrCl = ((140 - Age) * (Weight_CrCl / (Serum_Creat * 72))) * CrCl_Sex
LOINC of Result: 33558-8 : mL/min : 2164-2 : mL/min
Default Result Unit: mL/min
Allowable Result Units: mL/hr  mL/min  L/hr  
 
Equation: Ke = (0.0024 * CrCl) + 0.01
Default Result Unit: hr-1
Allowable Result Units:
 
Equation: Half_Life = 0.693 / Ke
Default Result Unit: hr
Allowable Result Units: min  hr  day  
 
Equation: VD = DW * Distribution_Factor
Default Result Unit: L
Allowable Result Units: mL  L  
 
Equation: Dosing_Interval = ((1 / Ke) * ln(Desired_Peak / Desired_Trough)) + Infusion_Time
Default Result Unit: hr
Allowable Result Units: min  hr  day  
 
Equation: Loading_Dose = (VD * Infusion_Time * Ke * Desired_Peak) / (1 - eTo(-Ke * Infusion_Time))
Default Result Unit: mg
Allowable Result Units: mcg  mg  gm  
 
Equation: Maintenance_Dose = (VD * Infusion_Time * Ke * Desired_Peak * (1 - eTo(-Ke * Dosing_Interval))) / (1 - eTo(-Ke * Infusion_Time))
Default Result Unit: mg
Allowable Result Units: mcg  mg  gm  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: in
Allowable Units: cm  m  in  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL
Allowable Units: mg%  mg/dL  gm/dL  gm/L  mg/mL  
 
Radio Button Variable: Distribution_Factor
Discrete variable option: 0.25 L/kg Variable value: 0.25
Discrete variable option: 0.30 L/kg Variable value: 0.3
Discrete variable option: 0.35 L/kg Variable value: 0.35
 
Variable: Infusion_Time
Default Unit: hr
Allowable Units: min  hr  day  
Default value: 0.5 hr
 
Variable: Desired_Peak
Default Unit: mg/L
Allowable Units: mg/L  mcg/mL  
 
Variable: Desired_Trough
Default Unit: mg/L
Allowable Units: mg/L  mcg/mL  
 
 


 
Online calculator: Gentamicin and Tobramycin Level Prediction from Maintenance Dosing
Source file: GentTobraLevelPrediction.cp
EBMcalc Version: 8.9

 
Equation: IBW = Math.abs(Height > 60) * (2.3 * (Height - 60)) + IBW_Sex
Default Result Unit: kg
Allowable Result Units: kg  lb  
 
Equation: DW = Math.abs(Weight > (1.2 * IBW)) * (0.4 * (Weight - IBW)) + IBW
Default Result Unit: kg
Allowable Result Units: kg  lb  
 
Equation: CrCl = ((140 - Age) * (Weight_CrCl / (Serum_Creat * 72))) * CrCl_Sex
LOINC of Result: 33558-8 : mL/min : 2164-2 : mL/min
Default Result Unit: mL/min
Allowable Result Units: mL/hr  mL/min  L/hr  
 
Equation: Ke = (0.0024 * CrCl) + 0.01
Default Result Unit: hr-1
Allowable Result Units:
 
Equation: Half_Life = 0.693 / Ke
Default Result Unit: hr
Allowable Result Units: min  hr  day  
 
Equation: VD = DW * Distribution_Factor
Default Result Unit: L
Allowable Result Units: mL  L  
 
Equation: Predicted_Peak = (Dose * (1 - eTo(-Ke * Infusion_Time))) / (Ke * VD * Infusion_Time * (1 - eTo(-Ke * Dose_Interval)))
Default Result Unit: mg/L
Allowable Result Units: mg/L  mcg/mL  
 
Equation: Predicted_Trough = Predicted_Peak * eTo(-Ke * (Dose_Interval - Infusion_Time))
Default Result Unit: mg/L
Allowable Result Units: mg/L  mcg/mL  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: in
Allowable Units: cm  m  in  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL
Allowable Units: mg%  mg/dL  gm/dL  gm/L  mg/mL  
 
Radio Button Variable: Distribution_Factor
Discrete variable option: 0.25 L/kg Variable value: 0.25
Discrete variable option: 0.30 L/kg Variable value: 0.3
Discrete variable option: 0.35 L/kg Variable value: 0.35
 
Variable: Dose
Default Unit: mg
Allowable Units: mcg  mg  gm  
 
Variable: Dose_Interval
Default Unit: hr
Allowable Units: min  hr  day  
 
Variable: Infusion_Time
Default Unit: hr
Allowable Units: min  hr  day  
Default value: 0.5 hr
 
 


 
Online calculator: Gentamicin and Tobramycin Steady State Dosage Adjustment
Source file: GentTobraSteadyState.cp
EBMcalc Version: 8.9

 
Equation: Ke = (ln(Measured_Peak) - ln(Measured_Trough))/(Trough_Hours_After_Dose - Peak_Hours_After_Dose)
Default Result Unit: hr-1
Allowable Result Units:
 
Equation: Half_Life = 0.693 / Ke
Default Result Unit: hr
Allowable Result Units: min  hr  day  
 
Equation: VD = Current_Dose * (1 - eTo(-Ke * Infusion_Time))/ (Ke * Infusion_Time * (Measured_Peak - (Measured_Trough * eTo(-Ke * Infusion_Time))))
Default Result Unit: L
Allowable Result Units: mL  L  
 
Equation: New_Dosing_Interval = ((1 / Ke) * ln(Desired_Peak / Desired_Trough)) + Infusion_Time
Default Result Unit: hr
Allowable Result Units: min  hr  day  
 
Equation: New_Dose = VD * Infusion_Time * Ke * Desired_Peak * (1 - eTo(-Ke * New_Dosing_Interval))/ (1 - eTo(-Ke * Infusion_Time))
Default Result Unit: mg
Allowable Result Units: mcg  mg  gm  
 
Variable: Current_Dose
Default Unit: mg
Allowable Units: mcg  mg  gm  
 
Variable: Infusion_Time
Default Unit: hr
Allowable Units: min  hr  day  
Default value: 0.5 hr
 
Variable: Measured_Peak
Default Unit: mg/L
Allowable Units: mg/L  mcg/mL  
 
Variable: Peak_Hours_After_Dose
Default Unit: hr
Allowable Units: min  hr  day  
 
Variable: Measured_Trough
Default Unit: mg/L
Allowable Units: mg/L  mcg/mL  
 
Variable: Trough_Hours_After_Dose
Default Unit: hr
Allowable Units: min  hr  day  
 
Variable: Desired_Peak
Default Unit: mg/L
Allowable Units: mg/L  mcg/mL  
 
Variable: Desired_Trough
Default Unit: mg/L
Allowable Units: mg/L  mcg/mL  
 
 


 
Online calculator: Gentamicin Dosing q24hr
Source file: GentDose.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes Z79.2 Long term (current) use of antibiotics; T36.91XA Poisoning by unspecified systemic antibiotic, accidental (unintentional), initial encounter
Associated ICD9-CM codes E930.0 Adv eff antibiotic nos; E930.0 Adv eff antibiotics nec; V58.62 Long-term use antibiotic; 960.9 Poisoning-antibiotic nos

 
Equation: Dose = Weight * Severity_Factor * Renal_Factor
Default Result Unit: mg
Allowable Result Units: mg  gm  kg  lb  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
Radio Button Variable: Severity_Factor
Discrete variable option: Dose for serious infection Variable value: 3
Discrete variable option: Dose when infection is life threatening Variable value: 5
 
Radio Button Variable: Renal_Factor
Discrete variable option: Serum creatinine ≤1 mg/dL Variable value: 1
Discrete variable option: Serum creatinine 1.1-1.3 mg/dL Variable value: 0.8
Discrete variable option: Serum creatinine 1.4-1.6 mg/dL Variable value: 0.65
Discrete variable option: Serum creatinine 1.7-1.9 mg/dL Variable value: 0.55
Discrete variable option: Serum creatinine 2.0-2.2 mg/dL Variable value: 0.5
Discrete variable option: Serum creatinine 2.3-2.5 mg/dL Variable value: 0.4
Discrete variable option: Serum creatinine 2.6-3.0 mg/dL Variable value: 0.35
Discrete variable option: Serum creatinine 3.1-3.5 mg/dL Variable value: 0.3
Discrete variable option: Serum creatinine 3.6-4.0 mg/dL Variable value: 0.25
Discrete variable option: Serum creatinine 4.1-5.1 mg/dL Variable value: 0.2
Discrete variable option: Serum creatinine 5.2-6.6 mg/dL Variable value: 0.15
Discrete variable option: Serum creatinine 6.7-8.0 mg/dL Variable value: 0.1
 
 


 
Online calculator: Gestational Age from Estimated Date of Delivery (EDD)
Source file: GestationalAgeFromEDD.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes O99.89 Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium; O26.90 Pregnancy related conditions, unspecified, unspecified trimester; Z33.1 Pregnant state, incidental; O09.00 Supervision of pregnancy with history of infertility, unspecified trimester; O09.291 Supervision of pregnancy with other poor reproductive or obstetric history, first trimester; O48.1 Prolonged pregnancy
Associated ICD9-CM codes 645.20 Prolonged preg-unsp; 645.21 Prolonged preg-del; 645.23 Prolonged preg-antepar; V23.5 Preg w poor reproduct hx; V23.49 Preg w poor obs hx nec; V23.0 Preg w hx of infertility; V22.2 Preg state, incidental; V72.4 Preg exam-preg unconfirm; 646.90 Preg compl nos-unspec; 646.93 Preg compl nos-antepart; 633.01 Abd preg w intraut preg

 
 


 
Online calculator: Glomerular Filtration Rate (GFR) Estimate by CKD-EPI Equation
Source file: GFR_CKD_EPI.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis
Associated ICD9-CM codes 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: GFR = 141 * power(Math.min(Serum_Creatinine/kappa, 1), alpha) * power(Math.max(Serum_Creatinine/kappa, 1), -1.209) * power(0.993,Age) * Sex * Race
LOINC of Result: 33914-3 : mL/min/1.73sqM : 33914-3 : mL/min/1.73 m2 : 33914-3 : mL/min/1.73 m^2 : 69405-9 : mL/min/1.73sqM : 69405-9 : mL/min/1.73 m2 : 69405-9 : mL/min/1.73 m^2
Default Result Unit: mL/min/1.73 m2
Allowable Result Units:
 
Radio Button Variable: Race
Discrete variable option: White Variable value: 1
Discrete variable option: Black or African American Variable value: 1.159
Discrete variable option: Other Variable value: 1
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Serum_Creatinine
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
 


 
Online calculator: Glomerular Filtration Rate (GFR) Estimate by Quadratic Equation
Source file: GFREstimateQuad.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis
Associated ICD9-CM codes 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: GFR = eTo(1.911 + (5.249 / Serum_Creat) - (2.114 / power(Serum_Creat, 2)) - (0.00686 * Age) - Sex)
LOINC of Result: 33914-3 : mL/min/1.73sqM : 33914-3 : mL/min/1.73 m2 : 33914-3 : mL/min/1.73 m^2 : 69405-9 : mL/min/1.73sqM : 69405-9 : mL/min/1.73 m2 : 69405-9 : mL/min/1.73 m^2
Default Result Unit: mL/min
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
Minimum value: 0.8 mg/dL_Cr
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0.205
Discrete variable option: Male Variable value: 0
 
 


 
Online calculator: Glomerular Filtration Rate (GFR) Estimate by Schwartz Formula
Source file: GFR_Schwartz.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis
Associated ICD9-CM codes 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: Glomerular_Filtration_Rate = Muscle_Factor * Height / Serum_Creat
LOINC of Result: 33914-3 : mL/min/1.73sqM : 33914-3 : mL/min/1.73 m2 : 33914-3 : mL/min/1.73 m^2 : 69405-9 : mL/min/1.73sqM : 69405-9 : mL/min/1.73 m2 : 69405-9 : mL/min/1.73 m^2
Default Result Unit: mL/min/1.73 m2
Allowable Result Units:
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: cm  m  in  
 
Radio Button Variable: Muscle_Factor
Discrete variable option: Premature infant up to 1 year of age Variable value: 0.33
Discrete variable option: Term infant up to 1 year of age 1 Variable value: 0.45
Discrete variable option: Child or adolescent girl Variable value: 0.55
Discrete variable option: Adolescent boy Variable value: 0.7
 
 


 
Online calculator: Glomerular Filtration Rate (GFR) Estimate by the Abbreviated MDRD Study Equation (SI units)
Source file: GFR_MDRD_Abbrev_SI.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis
Associated ICD9-CM codes 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: Glomerular_Filtration_Rate = 186 * power((Serum_Creat / 88.4), -1.154) * power(Age, -0.203) * Sex * Race
LOINC of Result: 33914-3 : mL/min/1.73sqM : 33914-3 : mL/min/1.73 m2 : 33914-3 : mL/min/1.73 m^2 : 69405-9 : mL/min/1.73sqM : 69405-9 : mL/min/1.73 m2 : 69405-9 : mL/min/1.73 m^2
Default Result Unit: mL/min/1.73 m2
Allowable Result Units:
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mcmol/L_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0.742
Discrete variable option: Male Variable value: 1
 
Radio Button Variable: Race
Discrete variable option: Black or African American Variable value: 1.21
Discrete variable option: Non-Black Variable value: 1
 
 


 
Online calculator: Glomerular Filtration Rate (GFR) Estimate by the Abbreviated MDRD Study Equation
Source file: GFR_MDRD_Abbrev.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis
Associated ICD9-CM codes 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: Glomerular_Filtration_Rate = 186 * power(Serum_Creat, -1.154) * power(Age, -0.203) * Sex * Race
LOINC of Result: 33914-3 : mL/min/1.73sqM : 33914-3 : mL/min/1.73 m2 : 33914-3 : mL/min/1.73 m^2 : 69405-9 : mL/min/1.73sqM : 69405-9 : mL/min/1.73 m2 : 69405-9 : mL/min/1.73 m^2
Default Result Unit: mL/min/1.73 m2
Allowable Result Units:
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0.742
Discrete variable option: Male Variable value: 1
 
Radio Button Variable: Race
Discrete variable option: Black or African American Variable value: 1.21
Discrete variable option: Non-Black Variable value: 1
 
 


 
Online calculator: Glomerular Filtration Rate (GFR) Estimate by the IDMS-Traceable MDRD Study Equation
Source file: GFR_IDMS.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis
Associated ICD9-CM codes 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: Glomerular_Filtration_Rate = 175 * power(Standardized_Serum_Creat, -1.154) * power(Age, -0.203) * Sex * Race
LOINC of Result: 33914-3 : mL/min/1.73sqM : 33914-3 : mL/min/1.73 m2 : 33914-3 : mL/min/1.73 m^2 : 69405-9 : mL/min/1.73sqM : 69405-9 : mL/min/1.73 m2 : 69405-9 : mL/min/1.73 m^2
Default Result Unit: mL/min/1.73 m2
Allowable Result Units:
 
Variable: Standardized_Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0.742
Discrete variable option: Male Variable value: 1
 
Radio Button Variable: Race
Discrete variable option: Black or African American Variable value: 1.21
Discrete variable option: Non-Black Variable value: 1
 
 


 
Online calculator: Glomerular Filtration Rate (GFR) Estimate by the MDRD Equation (SI units)
Source file: GFR_MDRD_Full_SI.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis
Associated ICD9-CM codes 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: GFR = 169.98 * power((Serum_Creat / 88.4), -0.999) * power(Age, -0.176) * Sex * Race * power((BUN / 0.357), -0.170) * power((Albumin / 10), 0.318)
LOINC of Result: 33914-3 : mL/min/1.73sqM : 33914-3 : mL/min/1.73 m2 : 33914-3 : mL/min/1.73 m^2 : 69405-9 : mL/min/1.73sqM : 69405-9 : mL/min/1.73 m2 : 69405-9 : mL/min/1.73 m^2
Default Result Unit: mL/min/1.73 m2
Allowable Result Units:
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mcmol/L_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0.762
Discrete variable option: Male Variable value: 1
 
Radio Button Variable: Race
Discrete variable option: Black or African American Variable value: 1.18
Discrete variable option: Non-Black Variable value: 1
 
Variable: BUN
LOINC: 3094-0 : mg/dL : 6299-2 : mg/dL : 14937-7 : mmol/L : 59570-2 : mmol/L
Default Unit: mmol/L_BUN
Allowable Units: mg/dL_BUN  mmol/L_BUN  
 
Variable: Albumin
LOINC: 1751-7 : g/dL
Default Unit: g/L_Alb
Allowable Units: g/dL_Alb  g/L_Alb  gm/dL_Alb  gm/L_Alb  mg/dL_Alb  mg/L_Alb  
 
 


 
Online calculator: Glomerular Filtration Rate (GFR) Estimate by the MDRD Equation
Source file: GFR_MDRD_Full.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis
Associated ICD9-CM codes 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: GFR = 170 * power(Serum_Creat, -0.999) * power(Age, -0.176) * Sex * Race * power(BUN, -0.170) * power(Albumin, 0.318)
LOINC of Result: 33914-3 : mL/min/1.73sqM : 33914-3 : mL/min/1.73 m2 : 33914-3 : mL/min/1.73 m^2 : 69405-9 : mL/min/1.73sqM : 69405-9 : mL/min/1.73 m2 : 69405-9 : mL/min/1.73 m^2
Default Result Unit: mL/min/1.73 m2
Allowable Result Units:
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0.762
Discrete variable option: Male Variable value: 1
 
Radio Button Variable: Race
Discrete variable option: Black or African American Variable value: 1.18
Discrete variable option: Non-Black Variable value: 1
 
Variable: BUN
LOINC: 3094-0 : mg/dL : 6299-2 : mg/dL : 14937-7 : mmol/L : 59570-2 : mmol/L
Default Unit: mg/dL_BUN
Allowable Units: mg/dL_BUN  mmol/L_BUN  
 
Variable: Albumin
LOINC: 1751-7 : g/dL
Default Unit: g/dL_Alb
Allowable Units: g/dL_Alb  g/L_Alb  gm/dL_Alb  gm/L_Alb  mg/dL_Alb  mg/L_Alb  
 
 


 
Online calculator: Glomerular Filtration Rate (GFR) Estimate by Updated Schwartz Formula
Source file: GFR_Schwartz_Bedside.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis
Associated ICD9-CM codes 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: Glomerular_Filtration_Rate = 0.413 * Height / Serum_Creat
LOINC of Result: 33914-3 : mL/min/1.73sqM : 33914-3 : mL/min/1.73 m2 : 33914-3 : mL/min/1.73 m^2 : 69405-9 : mL/min/1.73sqM : 69405-9 : mL/min/1.73 m2 : 69405-9 : mL/min/1.73 m^2
Default Result Unit: mL/min/1.73 m2
Allowable Result Units:
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: cm  m  in  
 
 


 
Online calculator: Glomerular Filtration Rate (GFR) Estimate in African Americans by AASK Equation
Source file: GFR_AASK.eq
EBMcalc Version: 15.1
Associated ICD10-CM codes N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis
Associated ICD9-CM codes 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: eGFR = 329 * power(Creatinine, -1.096) * power(Age, -0.294) * Sex
LOINC of Result: 33914-3 : mL/min/1.73sqM : 33914-3 : mL/min/1.73 m2 : 33914-3 : mL/min/1.73 m^2 : 69405-9 : mL/min/1.73sqM : 69405-9 : mL/min/1.73 m2 : 69405-9 : mL/min/1.73 m^2
Default Result Unit: mL/min/1.73 m2
Allowable Result Units:
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Creatinine
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0.736
Discrete variable option: Male Variable value: 1
 
 


 
Online calculator: Gorlin Formula for Valve Area
Source file: GorlinValveArea.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes I06.0 Rheumatic aortic stenosis; I35.9 Nonrheumatic aortic valve disorder, unspecified; I35.8 Other nonrheumatic aortic valve disorders; I35.0 Nonrheumatic aortic (valve) stenosis; Q25.2 Atresia of aorta
Associated ICD9-CM codes 747.22 Aortic atresia/stenosis; 424.1 Aortic valve disorder; 395.2 Rheum aortic sten/insuff; 395.0 Rheumat aortic stenosis; 394.9 Mitral valve dis nec/nos; 424.0 Mitral valve disorder; 397.0 Tricuspid valve disease; 746.00 Pulmonary valve anom nos

 
Equation: Valve_Area = ( Cardiac_Output / ( Flow_Time * Heart_Rate )) / ( Valve_Factor * sqr(Valve_Gradient) )
Default Result Unit: sqcm
Allowable Result Units: sqrcm  cm^2  sqcm  sqrm  sqm  
 
Variable: Cardiac_Output
Default Unit: mL/min
Allowable Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: Flow_Time
Default Unit: sec
Allowable Units: sec  min  hr  
 
Variable: Heart_Rate
LOINC: 8867-4 : beats/min
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Radio Button Variable: Valve_Factor
Discrete variable option: Aortic Variable value: 44.5
Discrete variable option: Mitral Variable value: 38.0
 
Variable: Valve_Gradient
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
 


 
Online calculator: Green King Index for Differentiating Beta-thalassemia Trait from Iron-deficiency
Source file: GreenKing.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes D56.9 Thalassemia, unspecified; D56.3 Thalassemia minor; Z13.0 Encounter for screening for diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism; D50.9 Iron deficiency anemia, unspecified
Associated ICD9-CM codes 282.4 Thalassemias; 280.9 Iron defic anemia nos; V78.0 Screen-iron defic anemia

 
Equation: Green_King_Index_Normalized = (power(MCV,2) * RDW / (Hgb * 100)) - Discriminant_Level
Default Result Unit: index
Allowable Result Units: none  index  #  number  logit  score  points  
 
Variable: MCV
Default Unit: fL
Allowable Units: fL  mL  L  
 
Variable: RDW
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: Hgb
LOINC: 718-7 : g/dL : 718-7 : gm/dL : 59260-0 : mmol/L
Default Unit: g/dL
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
 


 
  H

 
Online calculator: Heart Score
Source file: HeartScore.cc
EBMcalc Version: 17.3

 
Equation: Heart_Score = History + Electrocardiogram + Age_Factor + Risk_Factors + Troponin_Factor
Default Result Unit: points
Allowable Result Units: none  index  #  number  logit  score  points  
 
Radio Button Variable: History
Discrete variable option: High suspicion of ischemic cardiac pain Variable value: 2
Discrete variable option: Moderate suspicion of ischemic cardiac pain Variable value: 1
Discrete variable option: Slight or no suspicion of ischemic cardiac pain Variable value: 0
 
Radio Button Variable: Electrocardiogram
Discrete variable option: ST segments show significant depression Variable value: 2
Discrete variable option: Non-specific repolarization changes Variable value: 1
Discrete variable option: No ST segment changes Variable value: 0
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Maximum value: 120 yr
 
Radio Button Variable: Risk_Factors
Discrete variable option: Atherosclerosis: coronary, cerebrovascular, peripheral Variable value: 3
Discrete variable option: Three or more other risk factors (see below) Variable value: 2
Discrete variable option: One or two other risk factors Variable value: 1
Discrete variable option: No risk factors Variable value: 0
 
Variable: Troponin
LOINC: 10839-9 : ng/mL : 6598-7 : ng/mL : 49563-0 : ng/mL
Default Unit: ng/mL_Trop
Allowable Units: ng/mL_Trop  mcg/L_Trop  
 
Variable: Top_Normal_Troponin
Default Unit: ng/mL_Trop
Allowable Units: ng/mL_Trop  mcg/L_Trop  
 
 


 
Online calculator: Height Potential Prediction by Mid-parental Height
Source file: HeightPotential.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes E34.3 Short stature due to endocrine disorder; E22.0 Acromegaly and pituitary gigantism
Associated ICD9-CM codes 253.0 Acromegaly and gigantism; 259.4 Dwarfism nec

 
Equation: Height_Potential = HP_Sex
LOINC of Result: 8302-2 : cm
Default Result Unit: cm
Allowable Result Units: cm  m  in  
 
Equation: Height_Z_score = (power((Height_Potential / M), L) - 1) / (L * S)
Default Result Unit: %
Allowable Result Units: fraction  ratio  %  
 
Equation: Height_Percentile = ZtoPercentile(Height_Z_score)
Default Result Unit: %
Allowable Result Units: fraction  ratio  %  
 
Variable: Height_Mother
LOINC: 83846-6 : cm
Default Unit: cm
Allowable Units: cm  m  in  
Maximum value: 300 cm
 
Variable: Height_Father
LOINC: 83845-8 : cm
Default Unit: cm
Allowable Units: cm  m  in  
Maximum value: 300 cm
 
 


 
Online calculator: Hemoglobin A1C Estimation from Mean Plasma Glucose
Source file: HemoglobinA1CfromMPG.eq
EBMcalc Version: 8.8
Associated ICD10-CM codes E11.65 Type 2 diabetes mellitus with hyperglycemia; E10.65 Type 1 diabetes mellitus with hyperglycemia; E10.9 Type 1 diabetes mellitus without complications; O24.319 Unspecified pre-existing diabetes mellitus in pregnancy, unspecified trimester; Z13.1 Encounter for screening for diabetes mellitus
Associated ICD9-CM codes V77.1 Screen-diabetes mellitus; 648.00 Diabetes in preg-unspec; 250.01 Dmi wo cmp nt st uncntrl; 250.03 Dmi wo cmp uncntrld; 250.02 Dmii wo cmp uncntrld

 
Equation: HbA1C = (MPG + 77.3) / 35.6
LOINC of Result: 4548-4 : % : 17855-8 : % : 4549-2 : % : 17856-6 : % : 62388-4 : % : 71875-9 : % : 59261-8 : mmol/mol
Default Result Unit: %_HbA1C
Allowable Result Units: %_HbA1C  mmol/mol_HbA1C  
 
Variable: MPG
LOINC: 27353-2 : mg/dL : 53553-4 : mmol/L
Default Unit: mg/dL_Glu
Allowable Units: mg/dL_Glu  mmol/L_Glu  
 
 


 
Online calculator: Hemoglobin A1C to Mean Plasma Glucose Estimation
Source file: HemoglobinA1CtoMPG.eq
EBMcalc Version: 8.8
Associated ICD10-CM codes E11.65 Type 2 diabetes mellitus with hyperglycemia; E10.65 Type 1 diabetes mellitus with hyperglycemia; E10.9 Type 1 diabetes mellitus without complications; O24.319 Unspecified pre-existing diabetes mellitus in pregnancy, unspecified trimester; Z13.1 Encounter for screening for diabetes mellitus
Associated ICD9-CM codes V77.1 Screen-diabetes mellitus; 648.00 Diabetes in preg-unspec; 250.01 Dmi wo cmp nt st uncntrl; 250.03 Dmi wo cmp uncntrld; 250.02 Dmii wo cmp uncntrld

 
Equation: MPG = (35.6 * HbA1C) - 77.3
LOINC of Result: 27353-2 : mg/dL : 53553-4 : mmol/L
Default Result Unit: mg/dL_Glu
Allowable Result Units: mg/dL_Glu  mmol/L_Glu  
 
Variable: HbA1C
LOINC: 4548-4 : % : 17855-8 : % : 4549-2 : % : 17856-6 : % : 62388-4 : % : 71875-9 : % : 59261-8 : mmol/mol
Default Unit: %_HbA1C
Allowable Units: %_HbA1C  mmol/mol_HbA1C  
 
 


 
Online calculator: Henderson-Hasselbach Equation
Source file: HendersonHasselbach.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes E87.3 Alkalosis; E87.2 Acidosis
Associated ICD9-CM codes 276.2 Acidosis; 276.3 Alkalosis

 
Equation: pH = 6.1 + log(HCO3 / (0.03 * PaCO2))
LOINC of Result: 11558-4 : units : 2753-2 : units : 2744-1 : units : 2745-8 : units : 2746-6 : units
 
Variable: HCO3
LOINC: 1959-6 : mEq/L : 1960-4 : mEq/L : 14627-4 : mEq/L : 1961-2 : mEq/L : 22735-5 : mEq/L : 1963-8 : mEq/L
Default Unit: mEq/L_HCO3
Allowable Units: mEq/L_HCO3  mmol/L_HCO3  
 
Variable: PaCO2
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
 


 
Online calculator: Hepatitis C Cirrhosis Probability
Source file: HepatitisCCirrhosisRisk.cc
EBMcalc Version: 8.8
Associated ICD10-CM codes K77 Liver disorders in diseases classified elsewhere; Z22.52 Carrier of viral hepatitis C; K73.8 Other chronic hepatitis, not elsewhere classified; K73.2 Chronic active hepatitis, not elsewhere classified
Associated ICD9-CM codes 571.49 Chronic hepatitis nec; V02.62 Hepatitis c carrier; 573.1 Hepatitis in viral dis; 573.3 Hepatitis nos

 
Equation: Probability = 100 / (1 + eTo(7.9625 - (3.0947 * Spiders) - (3.0207 * AST) - (4.2604 * Platelets) - (3.9621 * Sex)))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Radio Button Variable: Spiders
Discrete variable option: Angiomata absent Variable value: 0
Discrete variable option: Present Variable value: 1
 
Radio Button Variable: AST
Discrete variable option: ≤40 IU/L Variable value: 0
Discrete variable option: >40 IU/L Variable value: 1
 
Radio Button Variable: Platelets
Discrete variable option: ≥140,000 Variable value: 0
Discrete variable option: <140,000 Variable value: 1
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0
Discrete variable option: Male Variable value: 1
 
 


 
Online calculator: Hepatitis C Fibrosis Prediction Score
Source file: HepatitisCFibrosisScore.eq
EBMcalc Version: 8.8
Associated ICD10-CM codes K77 Liver disorders in diseases classified elsewhere; Z22.52 Carrier of viral hepatitis C; K73.8 Other chronic hepatitis, not elsewhere classified; K73.2 Chronic active hepatitis, not elsewhere classified
Associated ICD9-CM codes 571.49 Chronic hepatitis nec; V02.62 Hepatitis c carrier; 573.1 Hepatitis in viral dis; 573.3 Hepatitis nos

 
Equation: Score = 7.81 - (3.131 * ln(Plt_Count)) + (0.781 * ln(GGT)) + (3.467 * ln(Age)) - (0.014 * Chol)
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Plt_Count
LOINC: 777-3 : x10(3)/mcL : 26515-7 : 10^9/L
Default Unit: x10(3)/mcL
Allowable Units: /microL  /mcL  #/microL  #/mcL  cells/microL  cells/mcL  x10(6)/L  x10^6/L  x10(3)/microL  x10^3/microL  x10(3)/mcL  x10^3/mcL  x10(9)/L  x10^9/L  x10(6)/microL  x10^6/microL  x10(6)/mcL  x10^6/mcL  x10(12)/L  x10^12/L  
 
Variable: GGT
Default Unit: u/L_GGT
Allowable Units: u/L_GGT  U/L_GGT  IU/L_GGT  mcKat/L_GGT  
 
Variable: Chol
LOINC: 2093-3 : mg/dL : 14647-2 : mmol/L
Default Unit: mg/dL_Chol
Allowable Units: mg/dL_Chol  mmol/L_Chol  
 
 


 
Online calculator: Hepatitis Discriminant Function for Corticosteroid Therapy in Alcoholic Hepatitis
Source file: HepatitisCriteria.cc
EBMcalc Version: 8.7
Associated ICD10-CM codes T51.0X4A Toxic effect of ethanol, undetermined, initial encounter; K71.6 Toxic liver disease with hepatitis, not elsewhere classified; K70.30 Alcoholic cirrhosis of liver without ascites; K70.10 Alcoholic hepatitis without ascites
Associated ICD9-CM codes 571.1 Ac alcoholic hepatitis; 571.2 Alcohol cirrhosis liver; 980 Alcohol toxicity; 980.0 Toxic eff ethyl alcohol; 571.49 Chronic hepatitis nec; 573.3 Hepatitis nos
Title synonyms Modified Maddrey's Discriminant Function

 
Equation: Index = 4.6 * (Prothrombin_Time - Control_Prothrombin_Time) + Bilirubin
 
Variable: Prothrombin_Time
Default Unit: sec
Allowable Units: sec  min  hr  
 
Variable: Control_Prothrombin_Time
Default Unit: sec
Allowable Units: sec  min  hr  
Default value: 12 sec
 
Variable: Bilirubin
LOINC: 32303-0 : mmol/L : 1975-2 : mg/dL : 59828-4 : mg/dL : 54363-7 : mcmol/L : 58941-6 : mg/dL
Default Unit: mg/dL_Bili
Allowable Units: mg/dL_Bili  mg%_Bili  mcmol/L_Bili  
 
 


 
Online calculator: HOMA Formula: Homeostasis Model Assessment of Insulin Resistance
Source file: HOMA.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes E88.81 Metabolic syndrome; E11.65 Type 2 diabetes mellitus with hyperglycemia; E11.9 Type 2 diabetes mellitus without complications; E10.65 Type 1 diabetes mellitus with hyperglycemia; E10.9 Type 1 diabetes mellitus without complications
Associated ICD9-CM codes 250.01 Dmi wo cmp nt st uncntrl; 250.03 Dmi wo cmp uncntrld; 250.00 Dmii wo cmp nt st uncntr; 250.02 Dmii wo cmp uncntrld; 277.7 Dysmetabolic syndrome x

 
Equation: HOMA_IR = Fasting_Insulin * Fasting_Glu / 22.5
 
Variable: Fasting_Insulin
Default Unit: mIU/mL
Allowable Units: mIU/mL  
 
Variable: Fasting_Glu
LOINC: 2345-7 : mg/dL : 2339-0 : mg/dL : 39480-9 : mmol/L : 32318-8 : mmol/L
Default Unit: mmol/L_Glu
Allowable Units: mg/dL_Glu  mmol/L_Glu  
 
 


 
Online calculator: Housestaff Activity Index
Source file: HousestaffActivityIndex.eq
EBMcalc Version: 8.9

 
Equation: Activity_Index = Census + (2 * Admits) + (1.75 * Discharges)
 
Variable: Census
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: Admits
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: Discharges
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Hyponatremia Correction Infusate Rate
Source file: HyponatremiaCorrection.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes E87.8 Other disorders of electrolyte and fluid balance, not elsewhere classified
Associated ICD9-CM codes 276.9 Electrolyt/fluid dis nec

 
Equation: Infusate_Rate = (1000 * Serum_Na_Change_Per_Hr * ((Water_Fract * Weight) + 1)) / (IV_Na + IV_K - Serum_Na)
Default Result Unit: mL/hr
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Equation: Serum_Na_Change_Per_Liter = (IV_Na + IV_K - Serum_Na) / ((Water_Fract * Weight) + 1)
Default Result Unit: mEq/L_Na
Allowable Result Units: mEq/L_Na  mmol/L_Na  
 
Variable: Serum_Na_Change_Per_Hr
Default Unit: mEq/L/hr
Allowable Units: mEq/L/hr  
Default value: 0.25 mEq/L/hr
Maximum value: 2 mEq/L/hr
 
Variable: Serum_Na
LOINC: 2951-2 : mmol/L : 2947-0 : mEq/L : 32340-2 : mEq/L : 39791-9 : mEq/L
Default Unit: mEq/L_Na
Allowable Units: mEq/L_Na  mmol/L_Na  
 
Radio Button Variable: Water_Fract
Discrete variable option: Child Variable value: 0.6
Discrete variable option: Adult Female Variable value: 0.5
Discrete variable option: Elderly Female Variable value: 0.45
Discrete variable option: Adult Male Variable value: 0.6
Discrete variable option: Elderly Male Variable value: 0.5
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
Radio Button Variable: IV_Na
Discrete variable option: 5% NaCl Variable value: 855
Discrete variable option: 3% NaCl Variable value: 513
Discrete variable option: 0.9% NaCl (Normal Saline) Variable value: 154
Discrete variable option: Ringer Lactate (Includes 4 mEq/L K+) Variable value: 134
 
Variable: IV_K
Default Unit: mEq/L_K
Allowable Units: mEq/L_K  mmol/L_K  
 
 


 
  I

 
Online calculator: Ideal Body Weight (method of Devine) and Dosing Weight
Source file: IBW_Devine.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes R63.6 Underweight; R63.5 Abnormal weight gain; R63.4 Abnormal weight loss; Z13.89 Encounter for screening for other disorder; E66.9 Obesity, unspecified; E66.01 Morbid (severe) obesity due to excess calories
Associated ICD9-CM codes 278.01 Morbid obesity; 278.00 Obesity nos; V77.8 Screening for obesity; 783.21 Abnormal loss of weight; 783.1 Abnormal weight gain; 783.22 Underweight

 
Equation: Ideal_Body_Weight = Math.abs(Height > 48) * (2.3 * (Height - 48)) + IBW_Sex
Default Result Unit: kg
Allowable Result Units: kg  lb  
 
Equation: Dosing_Weight = 0.4 * (Actual_Weight - Ideal_Body_Weight) + Ideal_Body_Weight
Default Result Unit: kg
Allowable Result Units: kg  lb  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: in
Allowable Units: cm  in  
Minimum value: 60 in
Maximum value: 108 in
 
Variable: Actual_Weight
Default Unit: kg
Allowable Units: kg  lb  
Minimum value: 30 kg
Maximum value: 300 kg
 
 


 
Online calculator: Ideal Body Weight Percentage
Source file: IdealBodyWgt_P.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes R63.6 Underweight; R63.5 Abnormal weight gain; R63.4 Abnormal weight loss; Z13.89 Encounter for screening for other disorder; E66.9 Obesity, unspecified; E66.01 Morbid (severe) obesity due to excess calories
Associated ICD9-CM codes 278.01 Morbid obesity; 278.00 Obesity nos; V77.8 Screening for obesity; 783.21 Abnormal loss of weight; 783.1 Abnormal weight gain; 783.22 Underweight

 
Equation: IBW = Weight * 100 / (power(Height, 2) * Sex)
Default Result Unit: %
Allowable Result Units: fraction  ratio  %  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: m
Allowable Units: cm  m  in  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 21.5
Discrete variable option: Male Variable value: 23
 
 


 
Online calculator: Ideal Body Weight
Source file: IdealBodyWgt.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes R63.6 Underweight; R63.5 Abnormal weight gain; R63.4 Abnormal weight loss; Z13.89 Encounter for screening for other disorder; E66.9 Obesity, unspecified; E66.01 Morbid (severe) obesity due to excess calories
Associated ICD9-CM codes 278.01 Morbid obesity; 278.00 Obesity nos; V77.8 Screening for obesity; 783.21 Abnormal loss of weight; 783.1 Abnormal weight gain; 783.22 Underweight

 
Equation: IBW = power(Height, 2) * Sex
Default Result Unit: kg
Allowable Result Units: kg  lb  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: m
Allowable Units: cm  m  in  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 21.5
Discrete variable option: Male Variable value: 23
 
 


 
Online calculator: IME Adjusted Ratio for Medical Education Medicare Payments to Teaching Hospitals
Source file: IMEAdjustedRatio.eq
EBMcalc Version: 8.7

 
Equation: IME_AR = 1.89 * power((1 + Number_Residents / Number_Beds), 0.405) - 1
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Number_Residents
Default Unit: number
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: Number_Beds
Default Unit: number
Allowable Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: In-Flight PaO2 Estimation (using PFT's)
Source file: InFlightPaO2PFTs.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Y92.813 Airplane as the place of occurrence of the external cause; J96.01 Acute respiratory failure with hypoxia; J96.21 Acute and chronic respiratory failure with hypoxia; J96.91 Respiratory failure, unspecified with hypoxia; J96.11 Chronic respiratory failure with hypoxia
Associated ICD9-CM codes V46.2 Dependence supp oxygen

 
Equation: PaO2 = 22.26 + (0.238 * Sea_Level_PaO2) + (20.1 * FEV1 / FVC)
LOINC of Result: 11556-8 : mmHg : 2703-7 : mmHg : 19254-2 : mmHg
Default Result Unit: mmHg
Allowable Result Units: mmHg  cmHg  
 
Variable: Sea_Level_PaO2
Default Unit: mmHg
Allowable Units: mmHg  cmHg  
 
Variable: FEV1
Default Unit: L
Allowable Units: mL  L  
 
Variable: FVC
Default Unit: L
Allowable Units: mL  L  
 
 


 
Online calculator: In-Flight PaO2 Estimation
Source file: InFlightPaO2.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Y92.813 Airplane as the place of occurrence of the external cause; J96.01 Acute respiratory failure with hypoxia; J96.21 Acute and chronic respiratory failure with hypoxia; J96.91 Respiratory failure, unspecified with hypoxia; J96.11 Chronic respiratory failure with hypoxia
Associated ICD9-CM codes V46.2 Dependence supp oxygen

 
Equation: PaO2 = 1.59 + (0.98 * Sea_Level_PaO2) + (0.0031 * Altitude) - (0.000061 * Sea_Level_PaO2 * Altitude) - (0.000065 * Sea_Level_PaCO2 * Altitude) + (0.000000092 * power(Altitude,2))
LOINC of Result: 11556-8 : mmHg : 2703-7 : mmHg : 19254-2 : mmHg
Default Result Unit: mmHg
Allowable Result Units: mmHg  cmHg  
 
Variable: Altitude
Default Unit: feet
Allowable Units: mile  kilometre  m  feet  
Default value: 8000 feet
Maximum value: 8000 feet
 
Variable: Sea_Level_PaO2
Default Unit: mmHg
Allowable Units: mmHg  cmHg  
 
Variable: Sea_Level_PaCO2
Default Unit: mmHg
Allowable Units: mmHg  cmHg  
 
 


 
Online calculator: Injury Severity Score (ISS)
Source file: ISS.eq
EBMcalc Version: 13.1
Associated ICD10-CM codes S06.360A Traumatic hemorrhage of cerebrum, unspecified, without loss of consciousness, initial encounter; T79.8XXA Other early complications of trauma, initial encounter; G89.11 Acute pain due to trauma; Z48.89 Encounter for other specified surgical aftercare
Associated ICD9-CM codes V58.43 Aftercar inj/trauma surg; 338.11 Acute pain d/t trauma; 958.8 Early complic trauma nec; 852.4 Traumatic extradural hem; 853.00 Traumatic brain hem nec; 896 Traumatic amputat foot; 887 Traumatic amput arm/hand

 
Equation: ISS = sq(BodyParts[5]) + sq(BodyParts[4]) + sq(BodyParts[3])
Default Result Unit: points
Allowable Result Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Inspiratory Capacity
Source file: InspiratoryCap.eq
EBMcalc Version: 8.7

 
Equation: Insp_Cap = Insp_Reserve_Vol + Tidal_Vol
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Variable: Insp_Reserve_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Tidal_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
 


 
Online calculator: International Normalized Ratio of Prothrombin Time (INR)
Source file: InternatNormRatio.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes T45.514A Poisoning by anticoagulants, undetermined, initial encounter; Z79.01 Long term (current) use of anticoagulants
Associated ICD9-CM codes E934.4 Adv eff anticoagulants; V58.61 Long-term use anticoagul; 964.2 Poisoning-anticoagulants

 
Equation: INR = power((Patient_Protime / Control_Protime), ISI)
LOINC of Result: 34714-6 : ratio : 6301-6 : ratio
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Patient_Protime
LOINC: 5902-2 : sec
Default Unit: sec
Allowable Units: sec  min  hr  
 
Variable: Control_Protime
LOINC: 5901-4 : sec
Default Unit: sec
Allowable Units: sec  min  hr  
 
Variable: ISI
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Iron Dextran Replacement Based on Lean Body Weight
Source file: IronDextran.eq
EBMcalc Version: 14.2
Associated ICD10-CM codes D50.9 Iron deficiency anemia, unspecified; D50.8 Other iron deficiency anemias; D53.9 Nutritional anemia, unspecified; D64.9 Anemia, unspecified; D64.89 Other specified anemias
Associated ICD9-CM codes 285.8 Anemia nec; 285.9 Anemia nos; 281.9 Deficiency anemia nos; 280.1 Iron def anemia dietary; 280.8 Iron defic anemia nec; 280.9 Iron defic anemia nos

 
Equation: Total_Dose = 0.0442 * Lean_Body_Weight * (Desired_Hgb - Observed_Hgb) + (0.26 * Lean_Body_Weight)
Default Result Unit: mL
Allowable Result Units: fL  mL  L  
 
Variable: Lean_Body_Weight
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
Minimum value: 15 kg
 
Variable: Desired_Hgb
Default Unit: g/dL
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
Variable: Observed_Hgb
Default Unit: g/dL
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
 


 
Online calculator: Iron Replacement (parenteral dosing) for Iron Deficiency
Source file: IronReplacement.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes D50.9 Iron deficiency anemia, unspecified; D50.8 Other iron deficiency anemias; D53.9 Nutritional anemia, unspecified; D64.9 Anemia, unspecified; D64.89 Other specified anemias
Associated ICD9-CM codes 285.8 Anemia nec; 285.9 Anemia nos; 281.9 Deficiency anemia nos; 280.1 Iron def anemia dietary; 280.8 Iron defic anemia nec; 280.9 Iron defic anemia nos

 
Equation: Dose = 0.3 * Weight * (100 - (Hgb * 100) / Age_Factor)
Default Result Unit: mg
Allowable Result Units: mg  gm  kg  lb  
 
Radio Button Variable: Age_Factor
Discrete variable option: Adult ≥33 lb Variable value: 14.8
Discrete variable option: Child <33 lb Variable value: 12
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: lb
Allowable Units: mg  gm  kg  lb  
 
Variable: Hgb
LOINC: 718-7 : g/dL : 718-7 : gm/dL : 59260-0 : mmol/L
Default Unit: g/dL
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
 


 
Online calculator: IV Drip Maintenance Rate Calculator
Source file: IVDripRate.eq
EBMcalc Version: 8.9

 
Equation: Drip_Rate = Total_Fluid_Volume / Total_Admin_Time
Default Result Unit: mL/hr
Allowable Result Units: mL/hr  mL/min  L/hr  
 
Variable: Total_Fluid_Volume
Default Unit: mL
Allowable Units: mL  L  
 
Variable: Total_Admin_Time
Default Unit: hr
Allowable Units: min  hr  day  
 
 


 
  K

 
Online calculator: Kappa Measurement of Inter-observer Agreement MultiCalc
Source file: Kappa_MC.eq
EBMcalc Version: 8.7

 
Equation: g1 = a + b
 
Equation: g2 = c + d
 
Equation: f1 = a + c
 
Equation: f2 = b + d
 
Equation: N = f1 + f2
 
Equation: P_Observed = (a + d) / N
 
Equation: P_Expected_Cohen = ((f1 * g1) + (f2 * g2)) / power(N, 2)
 
Equation: P_Expected_Scott = ( power((f1 + g1), 2) + power((f2 + g2), 2) ) / ( 4 * power(N, 2) )
 
Equation: Kappa_Cohen = ( P_Observed - P_Expected_Cohen ) / ( 1 - P_Expected_Cohen )
 
Equation: Kappa_Scott = ( P_Observed - P_Expected_Scott ) / ( 1 - P_Expected_Scott )
 
Equation: Kappa_Bennett = 2 * P_Observed - 1
 
Equation: Bias_Index = (b - c) / N
 
Equation: Prevalence_Index = (a - d) / N
 
Equation: Phi_Coefficient = ((a * d) - (b * c)) / sqr( f1 * f2 * g1 * g2 )
 
Two by Two Table:
Top Across:
Observer 1, Yes, No
Left Side Down: Observer 2, Yes, No
Top Row Variables: a, b
Bottom Row Variables: c, d
 
 


 
Online calculator: Kappa Measurement of Inter-observer Agreement: Bennett's Kappa
Source file: Kappa_Bennett.eq
EBMcalc Version: 8.7

 
Equation: g1 = a + b
 
Equation: g2 = c + d
 
Equation: f1 = a + c
 
Equation: f2 = b + d
 
Equation: N = f1 + f2
 
Equation: P_Observed = (a + d) / N
 
Equation: P_Expected = 0.5
 
Equation: Kappa = ( P_Observed - P_Expected ) / ( 1 - P_Expected )
 
Two by Two Table:
Top Across:
Observer 1, Yes, No
Left Side Down: Observer 2, Yes, No
Top Row Variables: a, b
Bottom Row Variables: c, d
 
 


 
Online calculator: Kappa Measurement of Inter-observer Agreement: Cohen's Kappa
Source file: Kappa_Cohen.eq
EBMcalc Version: 8.7

 
Equation: g1 = a + b
Default Result Unit: #
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: g2 = c + d
Default Result Unit: #
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: f1 = a + c
Default Result Unit: #
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: f2 = b + d
Default Result Unit: #
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: N = f1 + f2
Default Result Unit: #
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: P_Observed = (a + d) / N
 
Equation: P_Expected = ((f1 * g1) + (f2 * g2)) / power(N, 2)
 
Equation: Kappa = ( P_Observed - P_Expected ) / ( 1 - P_Expected )
 
Two by Two Table:
Top Across:
Observer 1, Yes, No
Left Side Down: Observer 2, Yes, No
Top Row Variables: a, b
Bottom Row Variables: c, d
 
 


 
Online calculator: Kappa Measurement of Inter-observer Agreement: Scott's Kappa
Source file: Kappa_Scott.eq
EBMcalc Version: 8.7

 
Equation: g1 = a + b
 
Equation: g2 = c + d
 
Equation: f1 = a + c
 
Equation: f2 = b + d
 
Equation: N = f1 + f2
 
Equation: P_Observed = (a + d) / N
 
Equation: P_Expected = ( power((f1 + g1), 2) + power((f2 + g2), 2) ) / ( 4 * power(N, 2) )
 
Equation: Kappa = ( P_Observed - P_Expected ) / ( 1 - P_Expected )
 
Two by Two Table:
Top Across:
Observer 1, Yes, No
Left Side Down: Observer 2, Yes, No
Top Row Variables: a, b
Bottom Row Variables: c, d
 
 


 
Online calculator: Kidney Failure Risk (5-year)
Source file: KidneyFailureRisk.cc
EBMcalc Version: 15.1
Associated ICD10-CM codes N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis; Y84.8 Other medical procedures as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure
Associated ICD9-CM codes 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: Terms = Sex - (Age * 0.019883) - (eGFR * 0.09872) + (ln(Urine_Alb_Creat_Ratio) * 0.35066) - (Calcium * 0.22129) + (Phosphate * 0.24197) - (Albumin * 0.33867) - (Bicarbonate * 0.07429) + 7.392030765
Default Result Unit: logit
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Risk = 100 * (1 - power(0.929, eTo(Terms)))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0
Discrete variable option: Male Variable value: 0.16117
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 18 yr
Maximum value: 90 yr
 
Variable: eGFR
LOINC: 33914-3 : mL/min/1.73sqM : 33914-3 : mL/min/1.73 m2 : 33914-3 : mL/min/1.73 m^2 : 69405-9 : mL/min/1.73sqM : 69405-9 : mL/min/1.73 m2 : 69405-9 : mL/min/1.73 m^2
Default Unit: mL/min/1.73 m^2
Allowable Units: mL/min/1.73 m^2  mL/sec/1.73 m^2  
Minimum value: 10 mL/min/1.73 m^2
Maximum value: 60 mL/min/1.73 m^2
 
Variable: Urine_Alb_Creat_Ratio
LOINC: 13705-9 : mg/g : 14585-4 : mmol/mol
Default Unit: mg/g
Allowable Units: mg/g  
Minimum value: 10 mg/g
Maximum value: 3000 mg/g
 
Variable: Calcium
LOINC: 17861-6 : mg/dL : 38250-7 : mg/dL : 2000-8 : mmol/L
Default Unit: mg/dL_Ca
Allowable Units: mg/dL_Ca  mmol/L_Ca  
Minimum value: 7.5 mg/dL_Ca
Maximum value: 10.5 mg/dL_Ca
 
Variable: Phosphate
LOINC: 20941-1 : mg/dL : 2777-1 : mg/dL
Default Unit: mg/dL_PO4
Allowable Units: mg/dL_PO4  mmol/L_PO4  
Minimum value: 3 mg/dL_PO4
Maximum value: 6.5 mg/dL_PO4
 
Variable: Albumin
LOINC: 1751-7 : g/dL
Default Unit: g/dL_Alb
Allowable Units: g/dL_Alb  g/L_Alb  gm/dL_Alb  gm/L_Alb  mg/dL_Alb  mg/L_Alb  
Minimum value: 1 g/dL_Alb
Maximum value: 4 g/dL_Alb
 
Variable: Bicarbonate
LOINC: 1959-6 : mEq/L : 1960-4 : mEq/L : 14627-4 : mEq/L : 1961-2 : mEq/L : 22735-5 : mEq/L : 1963-8 : mEq/L
Default Unit: mmol/L_HCO3
Allowable Units: mEq/L_HCO3  mmol/L_HCO3  
Minimum value: 15 mmol/L_HCO3
Maximum value: 28 mmol/L_HCO3
 
 


 
Online calculator: Kt/V Dialysis Dose Barth Formula
Source file: Kt_V_Barth.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes Z49.31 Encounter for adequacy testing for hemodialysis
Associated ICD9-CM codes V56.8 Dialysis encounter, nec; V56.31 Hemodialysis testing; V56.32 Peritoneal dialysis test; V56.0 Renal dialysis encounter; V45.1 Renal dialysis status; E879.9 Abn react-renal dialysis

 
Equation: Kt/V_Barth = 3.1 * ((BUN_Pre - BUN_Post) / BUN_Pre) - 0.66
 
Variable: BUN_Pre
LOINC: 11065-0 : mg/dL
Default Unit: mg%
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
Variable: BUN_Post
LOINC: 11064-3 : mg/dL
Default Unit: mg%
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
 


 
Online calculator: Kt/V Dialysis Dose Basile Formula
Source file: Kt_V_Basile.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes Z49.31 Encounter for adequacy testing for hemodialysis
Associated ICD9-CM codes V56.8 Dialysis encounter, nec; V56.31 Hemodialysis testing; V56.32 Peritoneal dialysis test; V56.0 Renal dialysis encounter; V45.1 Renal dialysis status; E879.9 Abn react-renal dialysis

 
Equation: Kt/V_Basile = 2.3 * ((BUN_Pre - BUN_Post) / BUN_Pre) - 0.284
 
Variable: BUN_Pre
LOINC: 11065-0 : mg/dL
Default Unit: mg%
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
Variable: BUN_Post
LOINC: 11064-3 : mg/dL
Default Unit: mg%
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
 


 
Online calculator: Kt/V Dialysis Dose Daugirdas Formula
Source file: Kt_V_Daugirdas.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes Z49.31 Encounter for adequacy testing for hemodialysis
Associated ICD9-CM codes V56.8 Dialysis encounter, nec; V56.31 Hemodialysis testing; V56.32 Peritoneal dialysis test; V56.0 Renal dialysis encounter; V45.1 Renal dialysis status; E879.9 Abn react-renal dialysis

 
Equation: Kt/V_Daugirdas = -ln((BUN_Post / BUN_Pre) - (0.008 * Hours)) + ((4 - (3.5 * BUN_Post / BUN_Pre)) * UF_Vol / Weight_Post)
 
Variable: BUN_Pre
LOINC: 11065-0 : mg/dL
Default Unit: mg/dL_BUN
Allowable Units: mg/dL_BUN  mmol/L_BUN  
Maximum value: 300 mg/dL_BUN
 
Variable: BUN_Post
LOINC: 11064-3 : mg/dL
Default Unit: mg/dL_BUN
Allowable Units: mg/dL_BUN  mmol/L_BUN  
Maximum value: 300 mg/dL_BUN
 
Variable: Hours
Default Unit: hr
Allowable Units: min  hr  day  
 
Variable: UF_Vol
Default Unit: L
Allowable Units: mL  L  
 
Variable: Weight_Post
Default Unit: kg
Allowable Units: kg  lb  
 
 


 
Online calculator: Kt/V Dialysis Dose Formulae MultiCalc
Source file: Kt_V_Formulae_Multi.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes Z49.31 Encounter for adequacy testing for hemodialysis
Associated ICD9-CM codes V56.8 Dialysis encounter, nec; V56.31 Hemodialysis testing; V56.32 Peritoneal dialysis test; V56.0 Renal dialysis encounter; V45.1 Renal dialysis status; E879.9 Abn react-renal dialysis

 
Equation: Kt/V_Daugirdas = -ln((BUN_Post / BUN_Pre) - (0.008 * Hours)) + ((4 - (3.5 * BUN_Post / BUN_Pre)) * UF_Vol / Weight_Post)
 
Equation: Kt/V_Lowrie = ln( BUN_Pre / BUN_Post)
 
Equation: Kt/V_Keshaviah = 1.162 * ln( BUN_Pre / BUN_Post)
 
Equation: Kt/V_Barth = 3.1 * ((BUN_Pre - BUN_Post) / BUN_Pre) - 0.66
 
Equation: Kt/V_Basile = 2.3 * ((BUN_Pre - BUN_Post) / BUN_Pre) - 0.284
 
Equation: Kt/V_Jindal = 4 * ((BUN_Pre - BUN_Post) / BUN_Pre) - 1.2
 
Equation: Kt/V_Kerr = 4.2 * ((BUN_Pre - BUN_Post) / BUN_Pre) - 1.48
 
Variable: BUN_Pre
LOINC: 11065-0 : mg/dL
Default Unit: mg%
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
Variable: BUN_Post
LOINC: 11064-3 : mg/dL
Default Unit: mg%
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
Variable: Hours
Default Unit: hr
Allowable Units: sec  min  hr  
 
Variable: UF_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Weight_Post
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
 


 
Online calculator: Kt/V Dialysis Dose Jindal Formula
Source file: Kt_V_Jindal.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes Z49.31 Encounter for adequacy testing for hemodialysis
Associated ICD9-CM codes V56.8 Dialysis encounter, nec; V56.31 Hemodialysis testing; V56.32 Peritoneal dialysis test; V56.0 Renal dialysis encounter; V45.1 Renal dialysis status; E879.9 Abn react-renal dialysis

 
Equation: Kt/V_Jindal = 4 * ((BUN_Pre - BUN_Post) / BUN_Pre) - 1.2
 
Variable: BUN_Pre
LOINC: 11065-0 : mg/dL
Default Unit: mg%
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
Variable: BUN_Post
LOINC: 11064-3 : mg/dL
Default Unit: mg%
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
 


 
Online calculator: Kt/V Dialysis Dose Kerr Formula
Source file: Kt_V_Kerr.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes Z49.31 Encounter for adequacy testing for hemodialysis
Associated ICD9-CM codes V56.8 Dialysis encounter, nec; V56.31 Hemodialysis testing; V56.32 Peritoneal dialysis test; V56.0 Renal dialysis encounter; V45.1 Renal dialysis status; E879.9 Abn react-renal dialysis

 
Equation: Kt/V_Kerr = 4.2 * ((BUN_Pre - BUN_Post) / BUN_Pre) - 1.48
 
Variable: BUN_Pre
LOINC: 11065-0 : mg/dL
Default Unit: mg%
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
Variable: BUN_Post
LOINC: 11064-3 : mg/dL
Default Unit: mg%
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
 


 
Online calculator: Kt/V Dialysis Dose Keshaviah Formula
Source file: Kt_V_Keshaviah.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes Z49.31 Encounter for adequacy testing for hemodialysis
Associated ICD9-CM codes V56.8 Dialysis encounter, nec; V56.31 Hemodialysis testing; V56.32 Peritoneal dialysis test; V56.0 Renal dialysis encounter; V45.1 Renal dialysis status; E879.9 Abn react-renal dialysis

 
Equation: Kt/V_Keshaviah = 1.162 * ln( BUN_Pre / BUN_Post)
 
Variable: BUN_Pre
LOINC: 11065-0 : mg/dL
Default Unit: mg%
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
Variable: BUN_Post
LOINC: 11064-3 : mg/dL
Default Unit: mg%
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
 


 
Online calculator: Kt/V Dialysis Dose Lowrie Formula
Source file: Kt_V_Lowrie.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes Z49.31 Encounter for adequacy testing for hemodialysis
Associated ICD9-CM codes V56.8 Dialysis encounter, nec; V56.31 Hemodialysis testing; V56.32 Peritoneal dialysis test; V56.0 Renal dialysis encounter; V45.1 Renal dialysis status; E879.9 Abn react-renal dialysis

 
Equation: Kt/V_Lowrie = ln( BUN_Pre / BUN_Post)
 
Variable: BUN_Pre
LOINC: 11065-0 : mg/dL
Default Unit: mg/dL_BUN
Allowable Units: mg/dL_BUN  mmol/L_BUN  
Maximum value: 300 mg/dL_BUN
 
Variable: BUN_Post
LOINC: 11064-3 : mg/dL
Default Unit: mg/dL_BUN
Allowable Units: mg/dL_BUN  mmol/L_BUN  
Maximum value: 300 mg/dL_BUN
 
 


 
  L

 
Online calculator: Lean Body Weight (Female)
Source file: LeanBodyWgtF.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes R63.6 Underweight; R63.5 Abnormal weight gain; R63.4 Abnormal weight loss; Z13.89 Encounter for screening for other disorder; E66.9 Obesity, unspecified; E66.01 Morbid (severe) obesity due to excess calories
Associated ICD9-CM codes 278.01 Morbid obesity; 278.00 Obesity nos; V77.8 Screening for obesity; 783.21 Abnormal loss of weight; 783.1 Abnormal weight gain; 783.22 Underweight

 
Equation: LBW = (0.65 * Height) - 50.74
Default Result Unit: kg
Allowable Result Units: kg  lb  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: cm  m  in  
 
 


 
Online calculator: Lean Body Weight (Male)
Source file: LeanBodyWgtM.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes R63.6 Underweight; R63.5 Abnormal weight gain; R63.4 Abnormal weight loss; Z13.89 Encounter for screening for other disorder; E66.9 Obesity, unspecified; E66.01 Morbid (severe) obesity due to excess calories
Associated ICD9-CM codes 278.01 Morbid obesity; 278.00 Obesity nos; V77.8 Screening for obesity; 783.21 Abnormal loss of weight; 783.1 Abnormal weight gain; 783.22 Underweight

 
Equation: LBW = (0.73 * Height) - 59.42
Default Result Unit: kg
Allowable Result Units: kg  lb  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: cm  m  in  
 
 


 
Online calculator: Lean Body Weight Based on Creatinine Production
Source file: LeanBodyWgtCreat.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes R63.6 Underweight; R63.5 Abnormal weight gain; R63.4 Abnormal weight loss; Z13.89 Encounter for screening for other disorder; E66.9 Obesity, unspecified; E66.01 Morbid (severe) obesity due to excess calories
Associated ICD9-CM codes 278.01 Morbid obesity; 278.00 Obesity nos; V77.8 Screening for obesity; 783.21 Abnormal loss of weight; 783.1 Abnormal weight gain; 783.22 Underweight

 
Equation: LBW = (0.029 * Creat_Production) + 7.38
Default Result Unit: kg
Allowable Result Units: mg  gm  kg  lb  
 
Variable: Creat_Production
Default Unit: mg/day
Allowable Units: mg/day  gm/day  
 
 


 
Online calculator: Left Atrial Thrombus Resolution in Mitral Stenosis Patients on Anticoagulation (for up to 34 months)
Source file: LeftAtrialThrombusResolution.cc
EBMcalc Version: 8.8
Associated ICD10-CM codes I51.3 Intracardiac thrombosis, not elsewhere classified; Q23.2 Congenital mitral stenosis; I34.8 Other nonrheumatic mitral valve disorders; I34.0 Nonrheumatic mitral (valve) insufficiency; I05.8 Other rheumatic mitral valve diseases; I05.2 Rheumatic mitral stenosis with insufficiency; I05.0 Rheumatic mitral stenosis
Associated ICD9-CM codes 394.0 Mitral stenosis; 394.2 Mitral stenosis w insuff; 394.9 Mitral valve dis nec/nos; 424.0 Mitral valve disorder; 746.5 Congen mitral stenosis

 
Equation: Resolution_Prob = 100 / (1 + eTo((1.8012 * NYHA_Class) + (0.7028 * LAT_Area) - 8.1))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: NYHA_Class
Minimum value: 1
Maximum value: 4
 
Variable: LAT_Area
Default Unit: cm^2
Allowable Units: sqrcm  cm^2  sqcm  sqrm  sqm  
 
 


 
Online calculator: Likelihood Ratio MultiCalc
Source file: Likelihood.eq
EBMcalc Version: 8.7

 
Equation: LR_Pos = Sensitivity / (1-Specificity)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: LR_Neg = (1-Sensitivity) / Specificity
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Sensitivity
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
Variable: Specificity
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
 


 
Online calculator: Likelihood Ratio of Negative from Raw Data
Source file: LikelihoodRNData.eq
EBMcalc Version: 8.8

 
Equation: Sensitivity = True_Pos / (True_Pos + False_Neg)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Specificity = True_Neg / (True_Neg + False_Pos)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: LR_Neg = (1-Sensitivity) / Specificity
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: True_Pos
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: False_Pos
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: True_Neg
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: False_Neg
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Likelihood Ratio of Positive from Raw Data
Source file: LikelihoodRPData.eq
EBMcalc Version: 8.8

 
Equation: Sensitivity = True_Pos / (True_Pos + False_Neg)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Specificity = True_Neg / (True_Neg + False_Pos)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: LR_Pos = Sensitivity / (1-Specificity)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: True_Pos
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: False_Pos
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: True_Neg
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: False_Neg
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Lung Age Estimation for Smoking Cessation Counseling
Source file: LungAge.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes J98.2 Interstitial emphysema; J43.9 Emphysema, unspecified; J98.3 Compensatory emphysema; J42 Unspecified chronic bronchitis; I27.9 Pulmonary heart disease, unspecified; I27.81 Cor pulmonale (chronic)
Associated ICD9-CM codes 518.82 Other pulmonary insuff; 416.9 Chr pulmon heart dis nos; 491.9 Chronic bronchitis nos; 518.2 Compensatory emphysema; 492.8 Emphysema nec; 518.1 Interstitial emphysema

 
Equation: Male_Lung_Age = (2.87 * Height) - (31.25 * FEV1) - 39.375
Default Result Unit: yr
Allowable Result Units: mo  yr  
 
Equation: Female_Lung_Age = (3.56 * Height) - (40 * FEV1) - 77.28
Default Result Unit: yr
Allowable Result Units: mo  yr  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: in
Allowable Units: cm  m  in  
 
Variable: FEV1
Default Unit: L
Allowable Units: mL  L  
 
 


 
Online calculator: Lung Cancer One Year Risk Estimation (for smokers 50-75 years old)
Source file: LungCancerRisk.cc
EBMcalc Version: 8.8
Associated ICD10-CM codes C34.90 Malignant neoplasm of unspecified part of unspecified bronchus or lung; C34.80 Malignant neoplasm of overlapping sites of unspecified bronchus and lung
Associated ICD9-CM codes 162.8 Mal neo bronch/lung nec; 162.9 Mal neo bronch/lung nos

 
Equation: CPD_Term = (0.060818386 * CPD) - ((CPD > 15) * (0.00014652216 * power((CPD - 15),3))) + ((CPD > 20) * (0.00018486938 * power((CPD - 20.185718),3))) - ((CPD > 40) * (0.000038347226 * power((CPD - 40), 3)))
 
Equation: Smk_Term = (0.11425297 * Smk) - ((Smk > 27) * (0.000080091477 * power((Smk - 27.6577),3))) + ((Smk > 40) * (0.00017069483 * power((Smk - 40),3))) - ((Smk > 50) * (0.000090603358 * power((Smk - 50.910335),3)))
 
Equation: Quit_Term = (0.085684793 * Quit) + (0.0065499693 * power(Quit,3)) - ((Quit > 0) * (0.0068305845 * power((Quit - 0.50513347),3))) + ((Quit > 12) * (0.00028061519 * power((Quit - 12.295688),3)))
 
Equation: Age_Term = (0.070322812 * Age) - ((Age > 53) * (0.00009382122 * power((Age - 53.459001),3))) + ((Age > 61) * (0.00018282661 * power((Age - 61.954825),3))) - ((Age > 70) * (0.000089005389 * power((Age - 70.910335),3)))
 
Equation: Term_Tot = CPD_Term + Smk_Term - Quit_Term + Age_Term + Asb - Sex - 9.7960571
 
Equation: Risk = 100 * (1 - power(0.99629, eTo(Term_Tot)))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: CPD
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
Default value: 20 #
 
Variable: Smk
Default Unit: yr
Allowable Units: mo  yr  
Default value: 1 yr
 
Variable: Quit
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 50 yr
Maximum value: 75 yr
 
Radio Button Variable: Asb
Discrete variable option: No asbestos exposure Variable value: 0
Discrete variable option: Positive asbestos exposure Variable value: 0.2153936
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0.05827261
Discrete variable option: Male Variable value: 0
 
 


 
Online calculator: Lung Cancer Risk Estimation in Current and Past Smokers (6-year)
Source file: LungCancerScreening.cc
EBMcalc Version: 13.4
Associated ICD10-CM codes C34.90 Malignant neoplasm of unspecified part of unspecified bronchus or lung; C34.80 Malignant neoplasm of overlapping sites of unspecified bronchus and lung
Associated ICD9-CM codes 162.8 Mal neo bronch/lung nec; 162.9 Mal neo bronch/lung nos

 
Equation: Log_odds = (0.0778868 * (Age - 62)) + Race - (0.0812744 * (Education - 4)) - (0.0274194 * (Body_Mass_Index - 27)) + COPD + HxCa + FMHCa + Smoker - (1.822606 * ((10 / Cigarettes_per_day) - 0.4021541613)) + (0.0317321 * (Years_smoking - 27)) - (0.0308572 * (Years_since_quitting_smoking - 10)) - 4.532506
Default Result Unit: logit
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Risk = 100 * (eTo(Log_odds) / (1 + eTo(Log_odds)))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 55 yr
Maximum value: 74 yr
 
Radio Button Variable: Race
Discrete variable option: White Variable value: 0
Discrete variable option: Black Variable value: 0.3944778
Discrete variable option: Hispanic Variable value: -0.7434744
Discrete variable option: Asian Variable value: -0.466585
Discrete variable option: Native American/Alaskan Variable value: 0
Discrete variable option: Native Pacific islander/Hawaiian Variable value: 1.027152
 
Radio Button Variable: Education
Discrete variable option: Less than high school Variable value: 1
Discrete variable option: High School graduate Variable value: 2
Discrete variable option: Training after high school Variable value: 3
Discrete variable option: Some college Variable value: 4
Discrete variable option: College graduate Variable value: 5
Discrete variable option: Postgraduate training Variable value: 6
 
Variable: Body_Mass_Index
LOINC: 39156-5 : kg/m^2 : 59576-9 : kg/m^2
Default Unit: kg/m^2
Allowable Units: kg/m^2  kg/m(2)  kg/sqm  
 
Variable: Cigarettes_per_day
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
Minimum value: 1 #
 
Variable: Years_smoking
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Years_since_quitting_smoking
Default Unit: yr
Allowable Units: mo  yr  
 
 


 
Online calculator: Lung Volume Multicalc
Source file: LungVolumes.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes J98.2 Interstitial emphysema; J43.9 Emphysema, unspecified; J98.3 Compensatory emphysema; J42 Unspecified chronic bronchitis; I27.9 Pulmonary heart disease, unspecified; I27.81 Cor pulmonale (chronic)
Associated ICD9-CM codes 518.82 Other pulmonary insuff; 416.9 Chr pulmon heart dis nos; 491.9 Chronic bronchitis nos; 518.2 Compensatory emphysema; 492.8 Emphysema nec; 518.1 Interstitial emphysema

 
Equation: Func_Res_Cap = Exp_Reserve_Vol + Residual_Vol
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Equation: Insp_Cap = Insp_Reserve_Vol + Tidal_Vol
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Equation: Total_Lung_Cap = Insp_Reserve_Vol + Tidal_Vol + Exp_Reserve_Vol + Residual_Vol
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Equation: Vital_Cap = Insp_Reserve_Vol + Tidal_Vol + Exp_Reserve_Vol
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Equation: Closing_Cap = Closing_Vol + Residual_Vol
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Equation: CV_VC_Ratio = 100 * Closing_Vol / Vital_Cap
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: CC_TLC_Ratio = 100 * Closing_Cap / Total_Lung_Cap
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: RV_TLC_Ratio = 100 * Residual_Vol / Total_Lung_Cap
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Exp_Reserve_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Residual_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Insp_Reserve_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Tidal_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Closing_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
 


 
  M

 
Online calculator: Maintenance Fluid Calculation for Children
Source file: MaintenanceFluidChildren.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes P74.4 Other transitory electrolyte disturbances of newborn; P74.1 Dehydration of newborn
Associated ICD9-CM codes 775.5 Neonatal dehydration; 276.5 Hypovolemia

 
Equation: Fluid_Rate = Daily_Vol / 24
Default Result Unit: mL/hr
Allowable Result Units: mL/hr  mL/min  L/hr  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
Minimum value: 3.499 kg
Maximum value: 200 kg
 
 


 
Online calculator: Mantle Cell Lymphoma International Prognostic Index (MIPI)
Source file: MIPI.eq
EBMcalc Version: 12.1
Associated ICD10-CM codes C83.10 Mantle cell lymphoma, unspecified site
Associated ICD9-CM codes 200.4 Mantle cell lymphoma

 
Equation: MIPI = (0.03535 * Age) + ECOG_Factor + (1.367 * log(LDH / LDH_ULN)) + (0.9393 * log(WBC))
Default Result Unit: points
Allowable Result Units: none  index  #  number  logit  score  points  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 18 yr
Maximum value: 120 yr
 
Radio Button Variable: ECOG_Factor
Discrete variable option: PS 0: Fully active, able to carry on all pre-disease performance without restriction Variable value: 0
Discrete variable option: PS 1: Restricted in physically strenuous activity but ambulatory and able to carry out work of a light or sedentary nature, e.g., light house work, office work Variable value: 0
Discrete variable option: PS 2: Ambulatory and capable of all selfcare but unable to carry out any work activities. Up and about more than 50% of waking hours Variable value: 0.6978
Discrete variable option: PS 3: Capable of only limited selfcare, confined to bed or chair more than 50% of waking hours Variable value: 0.6978
Discrete variable option: PS 4: Completely disabled. Cannot carry on any selfcare. Totally confined to bed or chair Variable value: 0.6978
 
Variable: WBC
LOINC: 6690-2 : #/microL
Default Unit: /microL
Allowable Units: /microL  /mcL  #/microL  #/mcL  cells/microL  cells/mcL  x10(6)/L  x10^6/L  x10(3)/microL  x10^3/microL  x10(3)/mcL  x10^3/mcL  x10(9)/L  x10^9/L  x10(6)/microL  x10^6/microL  x10(6)/mcL  x10^6/mcL  x10(12)/L  x10^12/L  
 
Variable: LDH
LOINC: 2532-0 : U/L : 2537-9 : U/L
Default Unit: U/L_LDH
Allowable Units: U/L_LDH  mcKat/L_LDH  
 
Variable: LDH_ULN
Default Unit: U/L_LDH
Allowable Units: U/L_LDH  mcKat/L_LDH  
 
 


 
Online calculator: Mean Corpuscular Hemoglobin Concentration
Source file: MeanCorpHbConc.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes D50.9 Iron deficiency anemia, unspecified; D50.8 Other iron deficiency anemias; D53.9 Nutritional anemia, unspecified; D64.9 Anemia, unspecified; D64.89 Other specified anemias
Associated ICD9-CM codes 285.8 Anemia nec; 285.9 Anemia nos; 281.9 Deficiency anemia nos; 280.1 Iron def anemia dietary; 280.8 Iron defic anemia nec; 280.9 Iron defic anemia nos

 
Equation: MCHC = Hb * 100 / Hct
Default Result Unit: g/dL
Allowable Result Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
Variable: Hb
LOINC: 718-7 : g/dL : 718-7 : gm/dL : 59260-0 : mmol/L
Default Unit: g/dL
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
Variable: Hct
LOINC: 4544-3 : % : 20570-8 : % : 31100-1 : % : 4545-0 : %
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
 


 
Online calculator: Mean Corpuscular Hemoglobin
Source file: MeanCorpHb.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes D50.9 Iron deficiency anemia, unspecified; D50.8 Other iron deficiency anemias; D53.9 Nutritional anemia, unspecified; D64.9 Anemia, unspecified; D64.89 Other specified anemias
Associated ICD9-CM codes 285.8 Anemia nec; 285.9 Anemia nos; 281.9 Deficiency anemia nos; 280.1 Iron def anemia dietary; 280.8 Iron defic anemia nec; 280.9 Iron defic anemia nos

 
Equation: MCH = Hb * 10 / RBC
Default Result Unit: pg
Allowable Result Units: pg  
 
Variable: Hb
LOINC: 718-7 : g/dL : 718-7 : gm/dL : 59260-0 : mmol/L
Default Unit: g/dL
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
Variable: RBC
LOINC: 789-8 : 10^6/microL : 790-6 : 10^9/microL
Default Unit: x10(12)/L
Allowable Units: /microL  /mcL  #/microL  #/mcL  cells/microL  cells/mcL  x10(6)/L  x10^6/L  x10(3)/microL  x10^3/microL  x10(3)/mcL  x10^3/mcL  x10(9)/L  x10^9/L  x10(6)/microL  x10^6/microL  x10(6)/mcL  x10^6/mcL  x10(12)/L  x10^12/L  
 
 


 
Online calculator: Mean Corpuscular Volume
Source file: MeanCorpVol.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes D50.9 Iron deficiency anemia, unspecified; D50.8 Other iron deficiency anemias; D53.9 Nutritional anemia, unspecified; D64.9 Anemia, unspecified; D64.89 Other specified anemias
Associated ICD9-CM codes 285.8 Anemia nec; 285.9 Anemia nos; 281.9 Deficiency anemia nos; 280.1 Iron def anemia dietary; 280.8 Iron defic anemia nec; 280.9 Iron defic anemia nos

 
Equation: MCV = Hct * 10 / RBC
Default Result Unit: fL
Allowable Result Units: fL  mL  L  
 
Variable: Hct
LOINC: 4544-3 : % : 20570-8 : % : 31100-1 : % : 4545-0 : %
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: RBC
LOINC: 789-8 : 10^6/microL : 790-6 : 10^9/microL
Default Unit: x10(12)/L
Allowable Units: /microL  /mcL  #/microL  #/mcL  cells/microL  cells/mcL  x10(6)/L  x10^6/L  x10(3)/microL  x10^3/microL  x10(3)/mcL  x10^3/mcL  x10(9)/L  x10^9/L  x10(6)/microL  x10^6/microL  x10(6)/mcL  x10^6/mcL  x10(12)/L  x10^12/L  
 
 


 
Online calculator: Mean Vascular Pressure (systemic or pulmonary)
Source file: MeanVascPres.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes I95.1 Orthostatic hypotension; I95.9 Hypotension, unspecified; I95.89 Other hypotension; I10 Essential (primary) hypertension
Associated ICD9-CM codes 401.1 Benign hypertension; 458.1 Chronic hypotension; 458.8 Hypotension nec; 458.9 Hypotension nos; 458.0 Orthostatic hypotension; 458.2 Iatrogenic hypotension

 
Equation: MV_BP = Diastolic_BP + ((Systolic_BP - Diastolic_BP) / 3)
Default Result Unit: mmHg
Allowable Result Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: Systolic_BP
LOINC: 8480-6 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: Diastolic_BP
LOINC: 8462-4 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
 


 
Online calculator: MELD Score for End-Stage Liver Disease (NOT appropriate for patients under the age of 12) (SI units)
Source file: MELD_SI.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes Z01.818 Encounter for other preprocedural examination; Z01.812 Encounter for preprocedural laboratory examination; K74.69 Other cirrhosis of liver; K74.60 Unspecified cirrhosis of liver; K74.0 Hepatic fibrosis
Associated ICD9-CM codes 571.5 Cirrhosis of liver nos; V72.84 Preop exam unspcf

 
Variable: Creatinine
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mcmol/L_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
Minimum value: 88.4 mcmol/L_Cr
Maximum value: 353.6 mcmol/L_Cr
 
Variable: Bilirubin
LOINC: 32303-0 : mmol/L : 1975-2 : mg/dL : 59828-4 : mg/dL : 54363-7 : mcmol/L : 58941-6 : mg/dL
Default Unit: mcmol/L_Bili
Allowable Units: mg/dL_Bili  mg%_Bili  mcmol/L_Bili  
Minimum value: 17 mcmol/L_Bili
 
Variable: INR
LOINC: 34714-6 : ratio : 6301-6 : ratio
Default Unit: ratio
Allowable Units: fraction  ratio  %  
Minimum value: 1 ratio
Maximum value: 100 ratio
 
Equation: MELD_Score = 10 * ((0.957 * ln(Creatinine/88.4)) + (0.378 * ln(Bilirubin/17.1)) + (1.12 * ln(INR))) + 6.43
 
 


 
Online calculator: MELD Score for End-Stage Liver Disease (NOT appropriate for patients under the age of 12)
Source file: MELD.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes Z01.818 Encounter for other preprocedural examination; Z01.812 Encounter for preprocedural laboratory examination; K74.69 Other cirrhosis of liver; K74.60 Unspecified cirrhosis of liver; K74.0 Hepatic fibrosis
Associated ICD9-CM codes 571.5 Cirrhosis of liver nos; V72.84 Preop exam unspcf

 
Variable: Creatinine
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
Minimum value: 1 mg/dL_Cr
Maximum value: 4 mg/dL_Cr
 
Variable: Bilirubin
LOINC: 32303-0 : mmol/L : 1975-2 : mg/dL : 59828-4 : mg/dL : 54363-7 : mcmol/L : 58941-6 : mg/dL
Default Unit: mg/dL_Bili
Allowable Units: mg/dL_Bili  mg%_Bili  mcmol/L_Bili  
Minimum value: 1 mg/dL_Bili
Maximum value: 200 mg/dL_Bili
 
Variable: INR
LOINC: 34714-6 : ratio : 6301-6 : ratio
Default Unit: ratio
Allowable Units: fraction  ratio  %  
Minimum value: 1 ratio
Maximum value: 100 ratio
 
Equation: MELD_Score = 10 * ((0.957 * ln(Creatinine)) + (0.378 * ln(Bilirubin)) + (1.12 * ln(INR))) + 6.43
 
 


 
Online calculator: MELDNa Score (2008) for End-Stage Liver Disease (NOT appropriate for patients under the age of 12) (SI units)
Source file: MELDNa_SI.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes E87.1 Hypo-osmolality and hyponatremia; Z01.818 Encounter for other preprocedural examination; Z01.812 Encounter for preprocedural laboratory examination; K74.69 Other cirrhosis of liver; K74.60 Unspecified cirrhosis of liver; K74.0 Hepatic fibrosis
Associated ICD9-CM codes 276.1 Hyponatremia; 571.5 Cirrhosis of liver nos; V72.84 Preop exam unspcf

 
Variable: Creatinine
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mcmol/L_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
Minimum value: 88.4 mcmol/L_Cr
Maximum value: 353.6 mcmol/L_Cr
 
Variable: Bilirubin
LOINC: 32303-0 : mmol/L : 1975-2 : mg/dL : 59828-4 : mg/dL : 54363-7 : mcmol/L : 58941-6 : mg/dL
Default Unit: mcmol/L_Bili
Allowable Units: mg/dL_Bili  mg%_Bili  mcmol/L_Bili  
Minimum value: 17 mcmol/L_Bili
 
Variable: INR
LOINC: 34714-6 : ratio : 6301-6 : ratio
Default Unit: ratio
Allowable Units: fraction  ratio  %  
Minimum value: 1 ratio
Maximum value: 100 ratio
 
Variable: Serum_Na
LOINC: 2951-2 : mmol/L : 2947-0 : mEq/L : 32340-2 : mEq/L : 39791-9 : mEq/L
Default Unit: mmol/L_Na
Allowable Units: mEq/L_Na  mmol/L_Na  
Minimum value: 125 mmol/L_Na
Maximum value: 140 mmol/L_Na
 
Equation: MELD_Score = 10 * ((0.957 * ln(Creatinine/88.4)) + (0.378 * ln(Bilirubin/17.1)) + (1.12 * ln(INR))) + 6.43
 
Equation: MELDNa_Score = MELD_Score - Serum_Na - (0.025 * MELD_Score * (140 - Serum_Na)) + 140
 
 


 
Online calculator: MELDNa Score (2008) for End-Stage Liver Disease (NOT appropriate for patients under the age of 12)
Source file: MELDNa.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes E87.1 Hypo-osmolality and hyponatremia; Z01.818 Encounter for other preprocedural examination; Z01.812 Encounter for preprocedural laboratory examination; K74.69 Other cirrhosis of liver; K74.60 Unspecified cirrhosis of liver; K74.0 Hepatic fibrosis
Associated ICD9-CM codes 276.1 Hyponatremia; 571.5 Cirrhosis of liver nos; V72.84 Preop exam unspcf

 
Variable: Creatinine
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
Minimum value: 1 mg/dL_Cr
Maximum value: 4 mg/dL_Cr
 
Variable: Bilirubin
LOINC: 32303-0 : mmol/L : 1975-2 : mg/dL : 59828-4 : mg/dL : 54363-7 : mcmol/L : 58941-6 : mg/dL
Default Unit: mg/dL_Bili
Allowable Units: mg/dL_Bili  mg%_Bili  mcmol/L_Bili  
Minimum value: 1 mg/dL_Bili
Maximum value: 200 mg/dL_Bili
 
Variable: INR
LOINC: 34714-6 : ratio : 6301-6 : ratio
Default Unit: ratio
Allowable Units: fraction  ratio  %  
Minimum value: 1 ratio
Maximum value: 100 ratio
 
Variable: Serum_Na
LOINC: 2951-2 : mmol/L : 2947-0 : mEq/L : 32340-2 : mEq/L : 39791-9 : mEq/L
Default Unit: mEq/L_Na
Allowable Units: mEq/L_Na  mmol/L_Na  
Minimum value: 125 mEq/L_Na
Maximum value: 140 mEq/L_Na
 
Equation: MELD_Score = 10 * ((0.957 * ln(Creatinine)) + (0.378 * ln(Bilirubin)) + (1.12 * ln(INR))) + 6.43
 
Equation: MELDNa_Score = MELD_Score - Serum_Na - (0.025 * MELD_Score * (140 - Serum_Na)) + 140
 
 


 
Online calculator: MELDNa Score (2016) (SI units)
Source file: MELDNa_SI2016.eq
EBMcalc Version: 16.4
Associated ICD10-CM codes E87.1 Hypo-osmolality and hyponatremia; Z01.818 Encounter for other preprocedural examination; Z01.812 Encounter for preprocedural laboratory examination; K74.69 Other cirrhosis of liver; K74.60 Unspecified cirrhosis of liver; K74.0 Hepatic fibrosis
Associated ICD9-CM codes 276.1 Hyponatremia; 571.5 Cirrhosis of liver nos; V72.84 Preop exam unspcf

 
Variable: Creatinine
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mcmol/L_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
Minimum value: 88.4 mcmol/L_Cr
Maximum value: 353.6 mcmol/L_Cr
 
Variable: Bilirubin
LOINC: 32303-0 : mmol/L : 1975-2 : mg/dL : 59828-4 : mg/dL : 54363-7 : mcmol/L : 58941-6 : mg/dL
Default Unit: mcmol/L_Bili
Allowable Units: mg/dL_Bili  mg%_Bili  mcmol/L_Bili  
Minimum value: 17 mcmol/L_Bili
 
Variable: INR
LOINC: 34714-6 : ratio : 6301-6 : ratio
Default Unit: ratio
Allowable Units: fraction  ratio  %  
Minimum value: 1 ratio
Maximum value: 100 ratio
 
Variable: Serum_Na
LOINC: 2951-2 : mmol/L : 2947-0 : mEq/L : 32340-2 : mEq/L : 39791-9 : mEq/L
Default Unit: mmol/L_Na
Allowable Units: mEq/L_Na  mmol/L_Na  
Minimum value: 125 mmol/L_Na
Maximum value: 137 mmol/L_Na
 
Equation: MELD_Score = Math.round((9.57 * ln(Creatinine/88.4)) + (3.78 * ln(Bilirubin/17.1)) + (11.2 * ln(INR)) + 6.43)
 
Equation: MELDNa_Score = MELD_Score + (Math.abs(MELD_Score > 11)) * ((1.32 * (137 - Serum_Na)) - (0.033 * MELD_Score * (137 - Serum_Na)))
 
 


 
Online calculator: MELDNa Score (2016)
Source file: MELDNa2016.eq
EBMcalc Version: 16.4
Associated ICD10-CM codes E87.1 Hypo-osmolality and hyponatremia; Z01.818 Encounter for other preprocedural examination; Z01.812 Encounter for preprocedural laboratory examination; K74.69 Other cirrhosis of liver; K74.60 Unspecified cirrhosis of liver; K74.0 Hepatic fibrosis
Associated ICD9-CM codes 276.1 Hyponatremia; 571.5 Cirrhosis of liver nos; V72.84 Preop exam unspcf

 
Variable: Creatinine
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
Minimum value: 1 mg/dL_Cr
Maximum value: 4 mg/dL_Cr
 
Variable: Bilirubin
LOINC: 32303-0 : mmol/L : 1975-2 : mg/dL : 59828-4 : mg/dL : 54363-7 : mcmol/L : 58941-6 : mg/dL
Default Unit: mg/dL_Bili
Allowable Units: mg/dL_Bili  mg%_Bili  mcmol/L_Bili  
Minimum value: 1 mg/dL_Bili
Maximum value: 200 mg/dL_Bili
 
Variable: INR
LOINC: 34714-6 : ratio : 6301-6 : ratio
Default Unit: ratio
Allowable Units: fraction  ratio  %  
Minimum value: 1 ratio
Maximum value: 100 ratio
 
Variable: Serum_Na
LOINC: 2951-2 : mmol/L : 2947-0 : mEq/L : 32340-2 : mEq/L : 39791-9 : mEq/L
Default Unit: mEq/L_Na
Allowable Units: mEq/L_Na  mmol/L_Na  
Minimum value: 125 mEq/L_Na
Maximum value: 137 mEq/L_Na
 
Equation: MELD_Score = Math.round((9.57 * ln(Creatinine)) + (3.78 * ln(Bilirubin)) + (11.2 * ln(INR)) + 6.43 )
 
Equation: MELDNa_Score = MELD_Score + (Math.abs(MELD_Score > 11)) * ((1.32 * (137 - Serum_Na)) - (0.033 * MELD_Score * (137 - Serum_Na)))
 
 


 
  H

 
Online calculator: Hepatitis Discriminant Function for Corticosteroid Therapy in Alcoholic Hepatitis
Source file: HepatitisCriteria.cc
EBMcalc Version: 8.7
Associated ICD10-CM codes T51.0X4A Toxic effect of ethanol, undetermined, initial encounter; K71.6 Toxic liver disease with hepatitis, not elsewhere classified; K70.30 Alcoholic cirrhosis of liver without ascites; K70.10 Alcoholic hepatitis without ascites
Associated ICD9-CM codes 571.1 Ac alcoholic hepatitis; 571.2 Alcohol cirrhosis liver; 980 Alcohol toxicity; 980.0 Toxic eff ethyl alcohol; 571.49 Chronic hepatitis nec; 573.3 Hepatitis nos

 
Equation: Index = 4.6 * (Prothrombin_Time - Control_Prothrombin_Time) + Bilirubin
 
Variable: Prothrombin_Time
Default Unit: sec
Allowable Units: sec  min  hr  
 
Variable: Control_Prothrombin_Time
Default Unit: sec
Allowable Units: sec  min  hr  
Default value: 12 sec
 
Variable: Bilirubin
LOINC: 32303-0 : mmol/L : 1975-2 : mg/dL : 59828-4 : mg/dL : 54363-7 : mcmol/L : 58941-6 : mg/dL
Default Unit: mg/dL_Bili
Allowable Units: mg/dL_Bili  mg%_Bili  mcmol/L_Bili  
 
 


 
  M

 
Online calculator: Mortality risk in post-operative patients with cirrhosis (SI units)
Source file: MELD9_SI.eq
EBMcalc Version: 11.2
Associated ICD10-CM codes Z01.818 Encounter for other preprocedural examination; Z01.812 Encounter for preprocedural laboratory examination; K74.69 Other cirrhosis of liver; K74.60 Unspecified cirrhosis of liver; K74.0 Hepatic fibrosis
Associated ICD9-CM codes 571.5 Cirrhosis of liver nos; V72.84 Preop exam unspcf

 
Equation: MELD_Score = Math.round(10 * ((1.12 * ln(INR)) + (0.378 * ln(Bilirubin / 17.1)) + (0.957 * ln(Creatinine / 88.4)) + (0.643 * Cirrhosis_Etiology)))
 
Equation: Adjusted_MELD_Score = Adjusted_MELD_Score + AgePlus + ASAPlus
 
Equation: ExpDays = eTo((0.02382 * (Age - 60)) + (0.88884 * ASAMort) + (0.11798 * (MELD_Score - 8)))
 
Equation: Mortality_7_Days = 100 * (1 - power(0.98370, ExpDays))
Default Result Unit: %
Allowable Result Units: fraction  ratio  %  
 
Equation: Mortality_30_Days = 100 * (1 - power(0.93479, ExpDays))
Default Result Unit: %
Allowable Result Units: fraction  ratio  %  
 
Equation: Mortality_90_Days = 100 * (1 - power(0.89681, ExpDays))
Default Result Unit: %
Allowable Result Units: fraction  ratio  %  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 12 yr
Maximum value: 120 yr
 
Radio Button Variable: ASA_Class
Discrete variable option: Class 3: Systemic disease with significant functional limitation Variable value: 3
Discrete variable option: Class 4: Systemic disease that is a constant threat to life Variable value: 4
 
Variable: Bilirubin
LOINC: 32303-0 : mmol/L : 1975-2 : mg/dL : 59828-4 : mg/dL : 54363-7 : mcmol/L : 58941-6 : mg/dL
Default Unit: mcmol/L_Bili
Allowable Units: mg/dL_Bili  mg%_Bili  mcmol/L_Bili  
Minimum value: 1.71 mcmol/L_Bili
Maximum value: 598.5 mcmol/L_Bili
 
Variable: Creatinine
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mcmol/L_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
Minimum value: 8.84 mcmol/L_Cr
Maximum value: 353.6 mcmol/L_Cr
 
Variable: INR
LOINC: 34714-6 : ratio : 6301-6 : ratio
Default Unit: ratio
Allowable Units: fraction  ratio  %  
Minimum value: 0.5 ratio
Maximum value: 10 ratio
 
Radio Button Variable: Cirrhosis_Etiology
Discrete variable option: Alcoholic or cholestatic Variable value: 0
Discrete variable option: Viral or other Variable value: 1
 
 


 
Online calculator: Mortality risk in post-operative patients with cirrhosis
Source file: MELD9.eq
EBMcalc Version: 11.2
Associated ICD10-CM codes Z01.818 Encounter for other preprocedural examination; Z01.812 Encounter for preprocedural laboratory examination; K74.69 Other cirrhosis of liver; K74.60 Unspecified cirrhosis of liver; K74.0 Hepatic fibrosis
Associated ICD9-CM codes 571.5 Cirrhosis of liver nos; V72.84 Preop exam unspcf

 
Equation: MELD_Score = Math.round(10 * ((1.12 * ln(INR)) + (0.378 * ln(Bilirubin)) + (0.957 * ln(Creatinine)) + (0.643 * Cirrhosis_Etiology)))
 
Equation: Adjusted_MELD_Score = Adjusted_MELD_Score + AgePlus + ASAPlus
 
Equation: ExpDays = eTo((0.02382 * (Age - 60)) + (0.88884 * ASAMort) + (0.11798 * (MELD_Score - 8)))
 
Equation: Mortality_7_Days = 100 * (1 - power(0.98370, ExpDays))
Default Result Unit: %
Allowable Result Units: fraction  ratio  %  
 
Equation: Mortality_30_Days = 100 * (1 - power(0.93479, ExpDays))
Default Result Unit: %
Allowable Result Units: fraction  ratio  %  
 
Equation: Mortality_90_Days = 100 * (1 - power(0.89681, ExpDays))
Default Result Unit: %
Allowable Result Units: fraction  ratio  %  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 12 yr
Maximum value: 120 yr
 
Radio Button Variable: ASA_Class
Discrete variable option: Class 3: Systemic disease with significant functional limitation Variable value: 3
Discrete variable option: Class 4: Systemic disease that is a constant threat to life Variable value: 4
 
Variable: Bilirubin
LOINC: 32303-0 : mmol/L : 1975-2 : mg/dL : 59828-4 : mg/dL : 54363-7 : mcmol/L : 58941-6 : mg/dL
Default Unit: mg/dL_Bili
Allowable Units: mg/dL_Bili  mg%_Bili  mcmol/L_Bili  
Minimum value: 0.1 mg/dL_Bili
Maximum value: 35 mg/dL_Bili
 
Variable: Creatinine
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
Minimum value: 0.1 mg/dL_Cr
Maximum value: 4 mg/dL_Cr
 
Variable: INR
LOINC: 34714-6 : ratio : 6301-6 : ratio
Default Unit: ratio
Allowable Units: fraction  ratio  %  
Minimum value: 0.5 ratio
Maximum value: 10 ratio
 
Radio Button Variable: Cirrhosis_Etiology
Discrete variable option: Alcoholic or cholestatic Variable value: 0
Discrete variable option: Viral or other Variable value: 1
 
 


 
  N

 
Online calculator: Nasal Cannula Oxygen Fractional Inspired O2 (FiO2) Estimate
Source file: NasalO2FIO2.eq
EBMcalc Version: 8.7

 
Equation: FiO2 = 21 + (Nasal_O2 * 3)
LOINC of Result: 19993-5 : %O2 : 19992-7 : %O2 : 19994-3 : %O2 : 19996-8 : %O2 : 19995-0 : %O2
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Nasal_O2
Default Unit: L/min
Allowable Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
Maximum value: 26 L/min
 
 


 
Online calculator: Negative Predictive Value from Raw Data
Source file: NegPredValueData.eq
EBMcalc Version: 8.8

 
Equation: Neg_Pred_Value = 100 * True_Neg / (True_Neg + False_Neg)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: True_Neg
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: False_Neg
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Negative Predictive Value of a Test
Source file: NegPredVal.eq
EBMcalc Version: 8.7

 
Equation: NPV = 100 * ((1 - Prevalence) * Specificity) / ((1-Prevalence) * Specificity + (Prevalence * (1 - Sensitivity)))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Prevalence
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: Sensitivity
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: Specificity
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
 
 


 
Online calculator: Newborn Hyperbilirubinemia Assessment
Source file: NewbornHyperbili.cc
EBMcalc Version: 8.9
Associated ICD10-CM codes P59.8 Neonatal jaundice from other specified causes; R17 Unspecified jaundice
Associated ICD9-CM codes 782.4 Jaundice nos; 774.5 Perinatal jaundice nec; 774 Other perinatal jaundice

 
Variable: Infant_Age
Default Unit: Hours
Allowable Units: Hours  Days  
Minimum value: 12 Hours
Maximum value: 147.99 Hours
 
Variable: Total_Bilirubin
LOINC: 32303-0 : mmol/L : 1975-2 : mg/dL : 59828-4 : mg/dL : 54363-7 : mcmol/L : 58941-6 : mg/dL
Default Unit: mg/dL_Bili
Allowable Units: mg/dL_Bili  mg%_Bili  mcmol/L_Bili  
 
Radio Button Variable: Clinical_Risk_Group
Discrete variable option: Group 1: Gestation >=38 weeks and medically well Variable value: 1
Discrete variable option: Group 2: Gestation >=38 weeks and clinical risk factors Variable value: 2
Discrete variable option: Group 2: Gestation 35 to 37.9 weeks and medically well Variable value: 2
Discrete variable option: Group 3: Gestation 35 to 37.9 weeks and clinical risk factors Variable value: 3
 
 


 
Online calculator: NIH Chronic Prostatitis Symptom Index
Source file: NIHProstatitis.eq
EBMcalc Version: 11.2
Associated ICD10-CM codes N41.9 Inflammatory disease of prostate, unspecified; N41.3 Prostatocystitis; N41.8 Other inflammatory diseases of prostate; N42.89 Other specified disorders of prostate; N42.9 Disorder of prostate, unspecified; N41.1 Chronic prostatitis; N41.0 Acute prostatitis
Associated ICD9-CM codes 601.0 Acute prostatitis; 601.1 Chronic prostatitis; 602.9 Prostatic disorder nos; 602.8 Prostatic disorders nec; 601.8 Prostatic inflam dis nec; 601.4 Prostatitis in oth dis; 601.9 Prostatitis nos; 601.3 Prostatocystitis

 
Equation: Pain_Index = q1a + q1b + q1c + q1d + q2a + q2b + q3 + q4
 
Equation: Urinary_Symptom_Index = q5 + q6
 
Equation: Quality_Of_Life_Impact = q7 + q8 + q9
 
Equation: Symptom_Scale_Score = Pain_Index + Urinary_Symptom_Index
 
Equation: Total_Score = Pain_Index + Urinary_Symptom_Index + Quality_Of_Life_Impact
 
 


 
Online calculator: Nonbiliary Cirrhosis Prognostic Criteria for One Year Survival
Source file: NonBiliaryLiverDx.cc
EBMcalc Version: 8.7
Associated ICD10-CM codes K70.30 Alcoholic cirrhosis of liver without ascites; K74.69 Other cirrhosis of liver; K74.60 Unspecified cirrhosis of liver; K74.0 Hepatic fibrosis
Associated ICD9-CM codes 571.5 Cirrhosis of liver nos; 571.2 Alcohol cirrhosis liver

 
Equation: LR_Score = (1.64 * Aminopyrene_BT) - (1.95 * Ascites) - .393
Default Result Unit: score
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Survival = 100 * eTo(LR_Score) / (1 + eTo(LR_Score))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Radio Button Variable: Ascites
Discrete variable option: Absent Variable value: 0
Discrete variable option: Moderate Variable value: 1
Discrete variable option: Severe Variable value: 2
 
Variable: Aminopyrene_BT
Default Unit: ratio
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 ratio
 
 


 
Online calculator: Normal Range for Body Weight
Source file: NormalBodyWgt.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes R63.6 Underweight; R63.5 Abnormal weight gain; R63.4 Abnormal weight loss; Z13.89 Encounter for screening for other disorder; E66.9 Obesity, unspecified; E66.01 Morbid (severe) obesity due to excess calories
Associated ICD9-CM codes 278.01 Morbid obesity; 278.00 Obesity nos; V77.8 Screening for obesity; 783.21 Abnormal loss of weight; 783.1 Abnormal weight gain; 783.22 Underweight

 
Equation: Low_Normal = 20 * power(Height, 2)
Default Result Unit: kg
Allowable Result Units: mg  gm  kg  lb  
 
Equation: High_Normal = 25 * power(Height, 2)
Default Result Unit: kg
Allowable Result Units: mg  gm  kg  lb  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: m
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
 


 
Online calculator: Number Needed to Harm (NNH) from Odds Ratio (OR) and Patient Expected Event Rate (PEER)
Source file: NumberNeededToHarm.eq
EBMcalc Version: 8.7

 
Equation: NNH = ((PEER * (OR-1)) + 1) / (PEER * (OR - 1) * (1 - PEER))
 
Variable: PEER
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
Variable: OR
Default Unit: ratio
Allowable Units: fraction  rate  ratio  %  percent  
 
 


 
Online calculator: Number Needed to Treat (NNT) from Odds Ratio (OR) and Patient Expected Event Rate (PEER)
Source file: NumberNeededToTreat.eq
EBMcalc Version: 8.7

 
Equation: NNT = (1 - (PEER * (1 - OR))) / (PEER * (1 - PEER) * (1 - OR))
Default Result Unit: #
Allowable Result Units: none  index  #  number  logit  score  points  
 
Variable: PEER
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
Variable: OR
Default Unit: ratio
Allowable Units: fraction  rate  ratio  %  percent  
 
 


 
  O

 
Online calculator: Odds from Probability
Source file: OddsProb.eq
EBMcalc Version: 8.7

 
Equation: Odds = Probability / (1 - Probability)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Probability
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
 


 
Online calculator: Odds Ratio and Relative Risk
Source file: OddsRatio.eq
EBMcalc Version: 8.7

 
Equation: Odds_Ratio = (Exp_Group_Positive / (Exp_Group_Total - Exp_Group_Positive)) / (Control_Group_Positive / (Control_Group_Total - Control_Group_Positive))
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Relative_Risk = (Exp_Group_Positive / Exp_Group_Total) / (Control_Group_Positive / Control_Group_Total)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Exp_Group_Positive
Default Unit: number
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: Exp_Group_Total
Default Unit: number
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: Control_Group_Positive
Default Unit: number
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: Control_Group_Total
Default Unit: number
Allowable Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Omeprazole Therapeutic Gain (over placebo) in Dyspepsia
Source file: OmeprazoleTheraputicGain.cc
EBMcalc Version: 8.8
Associated ICD10-CM codes K27.7 Chronic peptic ulcer, site unspecified, without hemorrhage or perforation; K27.9 Peptic ulcer, site unspecified, unspecified as acute or chronic, without hemorrhage or perforation; K21.0 Gastro-esophageal reflux disease with esophagitis; K21.9 Gastro-esophageal reflux disease without esophagitis
Associated ICD9-CM codes 530.81 Esophageal reflux; 530.11 Reflux esophagitis; 533.90 Peptic ulcer nos; 533.70 Chronic peptic ulcer nos

 
Equation: Tx_Index = (1.69 * Night_Pain) + (0.16 * (BMI - 25)) + (1.3 * Other_Rx) - (1.83 * Nausea) - 0.67
 
Variable: BMI~BodyMassIndex.eq~BMI_param
 
Radio Button Variable: Night_Pain
Discrete variable option: Absent Variable value: 0
Discrete variable option: Present Variable value: 1
 
Radio Button Variable: Other_Rx
Discrete variable option: H2 blockers or antacids Not used in last month Variable value: 0
Discrete variable option: Other Rx used Variable value: 1
 
Radio Button Variable: Nausea
Discrete variable option: Absent Variable value: 0
Discrete variable option: Present Variable value: 1
 
 


 
Online calculator: Omeprazole Therapeutic Index in Dyspepsia
Source file: OmeprazoleTheraputicIndex.cc
EBMcalc Version: 8.8
Associated ICD10-CM codes K27.7 Chronic peptic ulcer, site unspecified, without hemorrhage or perforation; K27.9 Peptic ulcer, site unspecified, unspecified as acute or chronic, without hemorrhage or perforation; K21.0 Gastro-esophageal reflux disease with esophagitis; K21.9 Gastro-esophageal reflux disease without esophagitis
Associated ICD9-CM codes 530.81 Esophageal reflux; 530.11 Reflux esophagitis; 533.90 Peptic ulcer nos; 533.70 Chronic peptic ulcer nos

 
Equation: TxIndex = (1.69 * NightPain) + (0.16 * (BMI - 25)) + (1.3 * OtherRx) - (1.83 * Nausea) - 0.67
 
Variable: BMI~BodyMassIndex.eq~BMI_param
 
Radio Button Variable: NightPain
Discrete variable option: Absent Variable value: 0
Discrete variable option: Present Variable value: 1
 
Radio Button Variable: OtherRx
Discrete variable option: H2 blockers or antacids Not used in last month Variable value: 0
Discrete variable option: Other Rx used Variable value: 1
 
Radio Button Variable: Nausea
Discrete variable option: Absent Variable value: 0
Discrete variable option: present Variable value: 1
 
 


 
Online calculator: Osmolal Gap Calculator (SI units)
Source file: OsmolalGap_SI.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes T51.2X4A Toxic effect of 2-Propanol, undetermined, initial encounter; T51.8X4A Toxic effect of other alcohols, undetermined, initial encounter; T51.1X4A Toxic effect of methanol, undetermined, initial encounter
Associated ICD9-CM codes 980.2 Toxic eff isopropyl alc; 980.1 Toxic eff methyl alcohol; 980.8 Toxic effect alcohol nec; 980.9 Toxic effect alcohol nos

 
Equation: Calculated_Osm = (Serum_Na * 2) + Serum_Glucose + Serum_BUN + Serum_Ethanol
LOINC of Result: 18182-6 : mOsm/Kg
Default Result Unit: mOsm/kg
Allowable Result Units: mOsm/kg  mOsm/dL  
 
Equation: Osmolal_Gap = Measured_Osm - Calculated_Osm
Default Result Unit: mOsm/kg
Allowable Result Units: mOsm/kg  mOsm/dL  
 
Variable: Serum_Na
LOINC: 2951-2 : mmol/L : 2947-0 : mEq/L : 32340-2 : mEq/L : 39791-9 : mEq/L
Default Unit: mmol/L_Na
Allowable Units: mEq/L_Na  mmol/L_Na  
 
Variable: Serum_Glucose
LOINC: 2345-7 : mg/dL : 2339-0 : mg/dL : 39480-9 : mmol/L : 32318-8 : mmol/L
Default Unit: mmol/L_Glu
Allowable Units: mg/dL_Glu  mmol/L_Glu  
 
Variable: Serum_BUN
LOINC: 3094-0 : mg/dL : 6299-2 : mg/dL : 14937-7 : mmol/L : 59570-2 : mmol/L
Default Unit: mmol/L_BUN
Allowable Units: mg/dL_BUN  mmol/L_BUN  
 
Variable: Serum_Ethanol
LOINC: 5643-2 : mg/dL : 5640-8 : mg/dL : 14719-9 : mmol/L
Default Unit: mmol/L_ETOH
Allowable Units: mmol/L_ETOH  mg/dL_ETOH  
 
Variable: Measured_Osm
LOINC: 2692-2 : mOsm/kg : 2696-3 : mOsm/kg
Default Unit: mOsm/kg
Allowable Units: mOsm/kg  mOsm/dL  
 
 


 
Online calculator: Osmolal Gap Calculator
Source file: OsmolalGap.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes T51.2X4A Toxic effect of 2-Propanol, undetermined, initial encounter; T51.8X4A Toxic effect of other alcohols, undetermined, initial encounter; T51.1X4A Toxic effect of methanol, undetermined, initial encounter
Associated ICD9-CM codes 980.2 Toxic eff isopropyl alc; 980.1 Toxic eff methyl alcohol; 980.8 Toxic effect alcohol nec; 980.9 Toxic effect alcohol nos

 
Equation: Calculated_Osm = (Serum_Na * 2) + (Serum_Glucose / 18) + (Serum_BUN / 2.8) + (Serum_Ethanol / 4.6)
LOINC of Result: 18182-6 : mOsm/Kg
Default Result Unit: mOsm/kg
Allowable Result Units: mOsm/kg  mOsm/dL  
 
Equation: Osmolal_Gap = Measured_Osm - Calculated_Osm
Default Result Unit: mOsm/kg
Allowable Result Units: mOsm/kg  mOsm/dL  
 
Variable: Serum_Na
LOINC: 2951-2 : mmol/L : 2947-0 : mEq/L : 32340-2 : mEq/L : 39791-9 : mEq/L
Default Unit: mEq/L_Na
Allowable Units: mEq/L_Na  mmol/L_Na  
 
Variable: Serum_Glucose
LOINC: 2345-7 : mg/dL : 2339-0 : mg/dL : 39480-9 : mmol/L : 32318-8 : mmol/L
Default Unit: mg/dL_Glu
Allowable Units: mg/dL_Glu  mmol/L_Glu  
 
Variable: Serum_BUN
LOINC: 3094-0 : mg/dL : 6299-2 : mg/dL : 14937-7 : mmol/L : 59570-2 : mmol/L
Default Unit: mg/dL_BUN
Allowable Units: mg/dL_BUN  mmol/L_BUN  
 
Variable: Serum_Ethanol
LOINC: 5643-2 : mg/dL : 5640-8 : mg/dL : 14719-9 : mmol/L
Default Unit: mg/dL_ETOH
Allowable Units: mmol/L_ETOH  mg/dL_ETOH  
 
Variable: Measured_Osm
LOINC: 2692-2 : mOsm/kg : 2696-3 : mOsm/kg
Default Unit: mOsm/kg
Allowable Units: mOsm/kg  mOsm/dL  
 
 


 
Online calculator: Osmolality Estimator (serum)
Source file: Osmolality.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes E87.1 Hypo-osmolality and hyponatremia; E22.2 Syndrome of inappropriate secretion of antidiuretic hormone; E86.0 Dehydration
Associated ICD9-CM codes 276.1 Hyponatremia; 276.51 Dehydration

 
Equation: Osm = (Na * 2) + (Glucose / 18) + (BUN / 2.8)
Default Result Unit: mOsm/kg
Allowable Result Units: mOsm/kg  mOsm/dL  
 
Variable: Na
LOINC: 2951-2 : mmol/L : 2947-0 : mEq/L : 32340-2 : mEq/L : 39791-9 : mEq/L
Default Unit: mEq/L_Na
Allowable Units: mEq/L_Na  mmol/L_Na  
 
Variable: Glucose
LOINC: 2345-7 : mg/dL : 2339-0 : mg/dL : 39480-9 : mmol/L : 32318-8 : mmol/L
Default Unit: mg/dL_Glu
Allowable Units: mg/dL_Glu  mmol/L_Glu  
 
Variable: BUN
LOINC: 3094-0 : mg/dL : 6299-2 : mg/dL : 14937-7 : mmol/L : 59570-2 : mmol/L
Default Unit: mg/dL_BUN
Allowable Units: mg/dL_BUN  mmol/L_BUN  
 
 


 
Online calculator: Osmolar Clearance
Source file: OsmolalClearance.eq
EBMcalc Version: 8.7

 
Equation: Osm_Clear = (Urine_Osm / Serum_Osm) * Urine_Per_Day / 24
Default Result Unit: mL/hr
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: Urine_Osm
LOINC: 2695-5 : mOsm/kg
Default Unit: mOsm/kg
Allowable Units: mOsm/kg  mOsm/dL  
 
Variable: Serum_Osm
LOINC: 2692-2 : mOsm/kg : 2696-3 : mOsm/kg
Default Unit: mOsm/kg
Allowable Units: mOsm/kg  mOsm/dL  
 
Variable: Urine_Per_Day
Default Unit: mL
Allowable Units: fL  mL  L  
 
 


 
Online calculator: Osteoporosis Risk Assessment by Composite Linear Estimate (ORACLE score)
Source file: OsteoporosisORACLE.cc
EBMcalc Version: 8.7
Associated ICD10-CM codes M81.0 Age-related osteoporosis without current pathological fracture; M81.8 Other osteoporosis without current pathological fracture
Associated ICD9-CM codes 733.09 Osteoporosis nec; 733.00 Osteoporosis nos

 
Equation: ORACLE = -1 / ( (0.02 * Age) - (0.13 * BMI) - (0.39 * HRTx) + (0.74 * HxFx) - (3 * UBPI) )
Default Result Unit: score
Allowable Result Units: none  index  #  number  logit  score  points  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: BMI~BodyMassIndex.eq~BMI_param
Default Unit: index
Allowable Units: none  index  #  number  logit  score  points  
 
Radio Button Variable: HRTx
Discrete variable option: Yes Variable value: 1
Discrete variable option: No Variable value: 0
 
Radio Button Variable: HxFx
Discrete variable option: Yes Variable value: 1
Discrete variable option: No Variable value: 0
 
Variable: UBPI
Default Unit: index
Allowable Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Osteoporosis Risk SCORE (Simple Calculated Osteoporosis Risk Estimation)
Source file: OsteoporosisRiskSCORE.cc
EBMcalc Version: 8.7
Associated ICD10-CM codes M81.0 Age-related osteoporosis without current pathological fracture; M81.8 Other osteoporosis without current pathological fracture
Associated ICD9-CM codes 733.09 Osteoporosis nec; 733.00 Osteoporosis nos

 
Equation: SCORE = Race + Rheum_Arth + Fracture_Hx + Estrogen + (3 * Age / 10) - (Weight / 10)
Default Result Unit: score
Allowable Result Units: none  index  #  number  logit  score  points  
 
Radio Button Variable: Race
Discrete variable option: Black Variable value: 0
Discrete variable option: Non-Black Variable value: 5
 
Radio Button Variable: Rheum_Arth
Discrete variable option: Present Variable value: 4
Discrete variable option: Absent Variable value: 0
 
Radio Button Variable: Fracture_Hx
Discrete variable option: No Nontraumatic Fractures Variable value: 0
Discrete variable option: 1 Nontraumatic Variable value: 4
Discrete variable option: 2 Nontraumatic Variable value: 8
Discrete variable option: 3 or more Nontraumatic Variable value: 12
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Radio Button Variable: Estrogen
Discrete variable option: Prior use Variable value: 0
Discrete variable option: NO prior use Variable value: 1
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: lb
Allowable Units: mg  gm  kg  lb  
 
 


 
Online calculator: Osteoporosis Self Assessment Tool for Men
Source file: OsteoporosisST_M.cc
EBMcalc Version: 8.7
Associated ICD10-CM codes M81.0 Age-related osteoporosis without current pathological fracture; M81.8 Other osteoporosis without current pathological fracture
Associated ICD9-CM codes 733.09 Osteoporosis nec; 733.00 Osteoporosis nos

 
Equation: OST = 0.2 * (Weight - Age)
Default Result Unit: score
Allowable Result Units: none  index  #  number  logit  score  points  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
 


 
Online calculator: Osteoporosis Self Assessment Tool for Women
Source file: OsteoporosisST_W.cc
EBMcalc Version: 8.7
Associated ICD10-CM codes M81.0 Age-related osteoporosis without current pathological fracture; M81.8 Other osteoporosis without current pathological fracture
Associated ICD9-CM codes 733.09 Osteoporosis nec; 733.00 Osteoporosis nos

 
Equation: OST = 0.2 * (Weight - Age)
Default Result Unit: score
Allowable Result Units: none  index  #  number  logit  score  points  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
 


 
Online calculator: Oswestry Disability Index Version 1
Source file: OswestryDisability1.cc
EBMcalc Version: 8.7
Associated ICD10-CM codes Z73.6 Limitation of activities due to disability; Z02.71 Encounter for disability determination
Associated ICD9-CM codes V68.01 Enc disability exam

 
Equation: Top_Possible_Score = 5 * (S1A + S2A + S3A + S4A + S5A + S6A + S7A + S8A + S9A + S10A)
Default Result Unit: number
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Subject_Score = (S1 * S1A) + (S2 * S2A) + (S3 * S3A) + (S4 * S4A) + (S5 * S5A) + (S6 * S6A) + (S7 * S7A) + (S8 * S8A) + (S9 * S9A) + (S10 * S10A)
Default Result Unit: points
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: ODI = 100 * Subject_Score / Top_Possible_Score
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Radio Button Variable: S1
Discrete variable option: I can tolerate the pain I have without having to use painkillers Variable value: 0
Discrete variable option: The pain is bad but I manage without taking painkillers Variable value: 1
Discrete variable option: Painkillers give complete relief from pain Variable value: 2
Discrete variable option: Painkillers give moderate relief from pain Variable value: 3
Discrete variable option: Painkillers give very little relief from pain Variable value: 4
Discrete variable option: Painkillers have no effect on the pain and I do not use them Variable value: 5
 
Radio Button Variable: S2
Discrete variable option: I can look after myself normally without causing extra pain Variable value: 0
Discrete variable option: I can look after myself normally but it causes extra pain Variable value: 1
Discrete variable option: It is painful to look after myself and I am slow and careful Variable value: 2
Discrete variable option: I need some help but manage most of my personal care Variable value: 3
Discrete variable option: I need help every day in most aspects of self-care Variable value: 4
Discrete variable option: I do not get dressed, wash with difficulty and stay in bed Variable value: 5
 
Radio Button Variable: S3
Discrete variable option: I can lift heavy weights without extra pain Variable value: 0
Discrete variable option: I can lift heavy weights but it gives extra pain Variable value: 1
Discrete variable option: Pain prevents me from lifting heavy weights off the floor, but I can manage if they are conveniently positioned, e.g. on a table Variable value: 2
Discrete variable option: Pain prevents me from lifting heavy weights but I can manage light to medium weights if they are conveniently positioned Variable value: 3
Discrete variable option: I can lift only very light weights Variable value: 4
Discrete variable option: I cannot lift or carry anything at all Variable value: 5
 
Radio Button Variable: S4
Discrete variable option: Pain does not prevent my walking any distance Variable value: 0
Discrete variable option: Pain prevents me walking more than 1 mile Variable value: 1
Discrete variable option: Pain prevents me walking more than 1/2 mile Variable value: 2
Discrete variable option: Pain prevents me walking more than 1/4 mile Variable value: 3
Discrete variable option: I can only walk using a stick or crutches Variable value: 4
Discrete variable option: I am in bed most of the time and have to crawl to the toilet Variable value: 5
 
Radio Button Variable: S5
Discrete variable option: I can sit in any chair as long as I like Variable value: 0
Discrete variable option: I can sit in my favourite chair as long as I like Variable value: 1
Discrete variable option: Pain prevents me sitting more than 1 hour Variable value: 2
Discrete variable option: Pain prevents me from sitting more than 1/2 an hour Variable value: 3
Discrete variable option: Pain prevents me from sitting more than 10 minutes Variable value: 4
Discrete variable option: Pain prevents me from sitting at all Variable value: 5
 
Radio Button Variable: S6
Discrete variable option: I can stand as long as I want without extra pain Variable value: 0
Discrete variable option: I can stand as long as I want but it gives me extra pain Variable value: 1
Discrete variable option: Pain prevents me from standing for more than 1 hour Variable value: 2
Discrete variable option: Pain prevents me from standing for more than 30 minutes Variable value: 3
Discrete variable option: Pain prevents me from standing for more than 10 minutes Variable value: 4
Discrete variable option: Pain prevents me from standing at all Variable value: 5
 
Radio Button Variable: S7
Discrete variable option: Pain does not prevent me from sleeping well Variable value: 0
Discrete variable option: I can sleep well only by using tablets Variable value: 1
Discrete variable option: Even when I take tablets I have less than 6 hours sleep Variable value: 2
Discrete variable option: Even when I take tablets I have less than 4 hours sleep Variable value: 3
Discrete variable option: Even when I take tablets I have less than 2 hours sleep Variable value: 4
Discrete variable option: Pain prevents me from sleeping at all Variable value: 5
 
Radio Button Variable: S8
Discrete variable option: My sex life is normal and causes no extra pain Variable value: 0
Discrete variable option: My sex life is normal but causes some extra pain Variable value: 1
Discrete variable option: My sex life is nearly normal but is very painful Variable value: 2
Discrete variable option: My sex life is severely restricted by pain Variable value: 3
Discrete variable option: My sex life is nearly absent because of pain Variable value: 4
Discrete variable option: Pain prevents any sex life at all Variable value: 5
 
Radio Button Variable: S9
Discrete variable option: My social life is normal and gives me no extra pain Variable value: 0
Discrete variable option: My social life is normal but increases the degree of pain Variable value: 1
Discrete variable option: Pain has no significant effect on my social life apart from limiting my more energetic interests, e.g. dancing, etc Variable value: 2
Discrete variable option: Pain has restricted my social life and I do not go out as often Variable value: 3
Discrete variable option: Pain has restricted social life to my home Variable value: 4
Discrete variable option: I have no social life because of pain Variable value: 5
 
Radio Button Variable: S10
Discrete variable option: I can travel anywhere without extra pain Variable value: 0
Discrete variable option: I can travel anywhere but it gives me extra pain Variable value: 1
Discrete variable option: Pain is bad but I manage journeys over two hours Variable value: 2
Discrete variable option: Pain restricts me to journeys of less than one hour Variable value: 3
Discrete variable option: Pain restricts me to short necessary journeys under 30 minutes Variable value: 4
Discrete variable option: Pain prevents travel except to the doctor or hospital Variable value: 5
 
 


 
Online calculator: Oswestry Disability Index Version 2
Source file: OswestryDisability2.cc
EBMcalc Version: 8.7
Associated ICD10-CM codes Z73.6 Limitation of activities due to disability; Z02.71 Encounter for disability determination
Associated ICD9-CM codes V68.01 Enc disability exam

 
Equation: Top_Possible_Score = 5 * (S1A + S2A + S3A + S4A + S5A + S6A + S7A + S8A + S9A + S10A)
Default Result Unit: number
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Subject_Score = (S1 * S1A) + (S2 * S2A) + (S3 * S3A) + (S4 * S4A) + (S5 * S5A) + (S6 * S6A) + (S7 * S7A) + (S8 * S8A) + (S9 * S9A) + (S10 * S10A)
Default Result Unit: points
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: ODI = 100 * Subject_Score / Top_Possible_Score
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Radio Button Variable: S1
Discrete variable option: I have no pain at the moment Variable value: 0
Discrete variable option: The pain is very mild at the moment Variable value: 1
Discrete variable option: The pain is moderate at the moment Variable value: 2
Discrete variable option: The pain is fairly severe at the moment Variable value: 3
Discrete variable option: The pain is very severe at the moment Variable value: 4
Discrete variable option: The pain is the worst imaginable at the moment Variable value: 5
 
Radio Button Variable: S2
Discrete variable option: I can look after myself normally without causing extra pain Variable value: 0
Discrete variable option: I can look after myself normally but it is very painful Variable value: 1
Discrete variable option: It is painful to look after myself and I am slow and careful Variable value: 2
Discrete variable option: I need some help but manage most of my personal care Variable value: 3
Discrete variable option: I need help every day in most aspects of self care Variable value: 4
Discrete variable option: I do not get dressed, wash with difficulty and stay in bed Variable value: 5
 
Radio Button Variable: S3
Discrete variable option: I can lift heavy weights without extra pain Variable value: 0
Discrete variable option: I can lift heavy weights but it gives extra pain Variable value: 1
Discrete variable option: Pain prevents me from lifting heavy weights off the floor but I can manage if they are conveniently positioned, e.g. on a table Variable value: 2
Discrete variable option: Pain prevents me from lifting heavy weights but I can manage light to medium weights if they are conveniently positioned Variable value: 3
Discrete variable option: I can lift only very light weights Variable value: 4
Discrete variable option: I cannot lift or carry anything at all Variable value: 5
 
Radio Button Variable: S4
Discrete variable option: Pain does not prevent me walking any distance Variable value: 0
Discrete variable option: Pain prevents me walking more than 1 mile Variable value: 1
Discrete variable option: Pain prevents me walking more than than 1/2 of a mile Variable value: 2
Discrete variable option: Pain prevents me walking more than 100 yards Variable value: 3
Discrete variable option: I can only walk using a stick or crutches Variable value: 4
Discrete variable option: I am in bed most of the time and have to crawl to the toilet Variable value: 5
 
Radio Button Variable: S5
Discrete variable option: I can sit in any chair as long as I like Variable value: 0
Discrete variable option: I can sit in my favourite chair as long as I like Variable value: 1
Discrete variable option: Pain prevents me from sitting for more than 1 hour Variable value: 2
Discrete variable option: Pain prevents me from sitting for more than 1/2 an hour Variable value: 3
Discrete variable option: Pain prevents me from sitting for more than 10 minutes Variable value: 4
Discrete variable option: Pain prevents me from sitting at all Variable value: 5
 
Radio Button Variable: S6
Discrete variable option: I can stand as long as I want without extra pain Variable value: 0
Discrete variable option: I can stand as long as I want but it gives me extra pain Variable value: 1
Discrete variable option: Pain prevents me from standing for more than 1 hour Variable value: 2
Discrete variable option: Pain prevents me from standing for more than 1/2 an hour Variable value: 3
Discrete variable option: Pain prevents me from standing for more than 10 minutes Variable value: 4
Discrete variable option: Pain prevents me from standing at all Variable value: 5
 
Radio Button Variable: S7
Discrete variable option: My sleep is never disturbed by pain Variable value: 0
Discrete variable option: My sleep is occasionally disturbed by pain Variable value: 1
Discrete variable option: Because of pain I have less than 6 hours sleep Variable value: 2
Discrete variable option: Because of pain I have less than 4 hours sleep Variable value: 3
Discrete variable option: Because of pain I have less than 2 hours sleep Variable value: 4
Discrete variable option: Pain prevents me from sleeping at all Variable value: 5
 
Radio Button Variable: S8
Discrete variable option: My sex life is normal and causes no extra pain Variable value: 0
Discrete variable option: My sex life is normal but causes some extra pain Variable value: 1
Discrete variable option: My sex life is nearly normal but is very painful Variable value: 2
Discrete variable option: My sex life is severely restricted by pain Variable value: 3
Discrete variable option: My sex life is nearly absent because of pain Variable value: 4
Discrete variable option: Pain prevents any sex life at all Variable value: 5
 
Radio Button Variable: S9
Discrete variable option: My social life is normal and causes me no extra pain Variable value: 0
Discrete variable option: My social life is normal but increases the degree of pain Variable value: 1
Discrete variable option: Pain has no significant effect on my social life apart from limiting my more energetic interests, e.g. sport, etc... Variable value: 2
Discrete variable option: Pain has restricted my social life and I do not go out as often Variable value: 3
Discrete variable option: Pain has restricted social life to my home Variable value: 4
Discrete variable option: I have no social life because of pain Variable value: 5
 
Radio Button Variable: S10
Discrete variable option: I can travel anywhere without pain Variable value: 0
Discrete variable option: I can travel anywhere but it gives extra pain Variable value: 1
Discrete variable option: Pain is bad but I manage journeys over two hours Variable value: 2
Discrete variable option: Pain restricts me to journeys of less than one hour Variable value: 3
Discrete variable option: Pain restricts me to short necessary journeys under 30 minutes Variable value: 4
Discrete variable option: Pain prevents me from travelling except to receive treatment Variable value: 5
 
 


 
Online calculator: Overall Accuracy of a Test from Raw Data
Source file: OverallAccData.eq
EBMcalc Version: 8.8

 
Equation: Overall_Accuracy = 100 * (True_Pos + True_Neg) / (True_Pos + True_Neg + False_Pos + False_Neg)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: True_Pos
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: False_Pos
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: True_Neg
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: False_Neg
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Overall Accuracy of a Test from Sensitivity, Specificity and Prevalence
Source file: OverallAccSS.eq
EBMcalc Version: 8.8

 
Equation: True_Pos = Sensitivity * Prevalence
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: True_Neg = Specificity * (1 - Prevalence)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Overall_Accuracy = 100 * (True_Pos + True_Neg)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Prevalence
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
Variable: Sensitivity
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
Variable: Specificity
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
 


 
Online calculator: Oxygen Consumption
Source file: O2Consumption.eq
EBMcalc Version: 8.9

 
Equation: VO2 = VExp * ( FIO2 - FEO2 )
Default Result Unit: mL/min
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: VExp
Default Unit: mL/min
Allowable Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: FIO2
LOINC: 19993-5 : %O2 : 19992-7 : %O2 : 19994-3 : %O2 : 19996-8 : %O2 : 19995-0 : %O2
Default Unit: fractionO2
Allowable Units: %O2  fractionO2  litresO2  
 
Variable: FEO2
Default Unit: fractionO2
Allowable Units: %O2  fractionO2  litresO2  
 
 


 
Online calculator: Oxygen Content of Arterial Blood
Source file: OxygenContentArterial.eq
EBMcalc Version: 8.9

 
Equation: CaO2 = ( Hgb * 13.4 * O2Sat / 100 ) + ( PaO2 * 0.031 )
LOINC of Result: 59274-1 : mL/dL
Default Result Unit: mL/L_CaO2
Allowable Result Units: mL/L_CaO2  mL/dL_CaO2  
 
Variable: Hgb
LOINC: 718-7 : g/dL : 718-7 : gm/dL : 59260-0 : mmol/L
Default Unit: g/dL
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
Variable: O2Sat
LOINC: 2713-6 : % : 51733-4 : %
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: PaO2
LOINC: 11556-8 : mmHg : 2703-7 : mmHg : 19254-2 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
 


 
Online calculator: Oxygen Content of Venous Blood
Source file: OxygenContentVenous.eq
EBMcalc Version: 8.9

 
Equation: CvO2 = ( Hgb * 13.4 * O2vSat / 100 ) + ( PvO2 * 0.031 )
LOINC of Result: 64798-2 : mL/dL
Default Result Unit: mL/L_CvO2
Allowable Result Units: mL/L_CvO2  mL/dL_CvO2  
 
Variable: Hgb
LOINC: 718-7 : g/dL : 718-7 : gm/dL : 59260-0 : mmol/L
Default Unit: g/dL
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
Variable: O2vSat
LOINC: 51731-8 : %
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: PvO2
LOINC: 2705-2 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
 


 
Online calculator: Oxygen Saturation Estimate from PO2
Source file: O2SatFromPO2.eq
EBMcalc Version: 10.3

 
Equation: O2_Saturation = 100 / (1 + (23400 / (power(PO2,3) + (150 * PO2))))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: PO2
LOINC: 11556-8 : mmHg : 2703-7 : mmHg : 19254-2 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
 


 
Online calculator: Oxygenation Index (OI)
Source file: OxygenIndex.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes P84 Other problems with newborn; J96.11 Chronic respiratory failure with hypoxia; J96.21 Acute and chronic respiratory failure with hypoxia; R09.02 Hypoxemia
Associated ICD9-CM codes 770.88 Hypoxemia of newborn; 799.02 Hypoxemia

 
Equation: OI = FiO2 * Mean_Airway_Pressure / PaO2
Default Result Unit: index
Allowable Result Units: none  index  #  number  logit  score  points  
 
Variable: FiO2
LOINC: 19993-5 : %O2 : 19992-7 : %O2 : 19994-3 : %O2 : 19996-8 : %O2 : 19995-0 : %O2
Default Unit: %O2
Allowable Units: %O2  fractionO2  litresO2  
 
Variable: Mean_Airway_Pressure
Default Unit: cmH2O
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: PaO2
LOINC: 11556-8 : mmHg : 2703-7 : mmHg : 19254-2 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
 


 
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Online calculator: paO2 / FIO2 Ratio (for MODS Calculation)
Source file: PaO2_FIO2Ratio.eq
EBMcalc Version: 8.9

 
Equation: p_aO2_FIO2_Ratio = p_aO2 / FIO2
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: p_aO2
LOINC: 11556-8 : mmHg : 2703-7 : mmHg : 19254-2 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: FIO2
LOINC: 19993-5 : %O2 : 19992-7 : %O2 : 19994-3 : %O2 : 19996-8 : %O2 : 19995-0 : %O2
Default Unit: fractionO2
Allowable Units: %O2  fractionO2  litresO2  
Maximum value: 1 fractionO2
 
 


 
Online calculator: PaO2 Correction for FIO2
Source file: PaO2Correction.eq
EBMcalc Version: 8.8
Associated ICD10-CM codes J98.2 Interstitial emphysema; J43.9 Emphysema, unspecified; J98.3 Compensatory emphysema; J42 Unspecified chronic bronchitis; I27.9 Pulmonary heart disease, unspecified; I27.81 Cor pulmonale (chronic)
Associated ICD9-CM codes 518.82 Other pulmonary insuff; 416.9 Chr pulmon heart dis nos; 491.9 Chronic bronchitis nos; 518.2 Compensatory emphysema; 492.8 Emphysema nec; 518.1 Interstitial emphysema

 
Equation: PO2_Corrected = 21 * PaO2 / FIO2
Default Result Unit: torr
Allowable Result Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: PaO2
LOINC: 11556-8 : mmHg : 2703-7 : mmHg : 19254-2 : mmHg
Default Unit: torr
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: FIO2
LOINC: 19993-5 : %O2 : 19992-7 : %O2 : 19994-3 : %O2 : 19996-8 : %O2 : 19995-0 : %O2
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
 


 
Online calculator: PASI Psoriasis Area and Severity Index
Source file: PASI.eq
EBMcalc Version: 11.1
Associated ICD10-CM codes L44.8 Other specified papulosquamous disorders; L40.8 Other psoriasis; L40.4 Guttate psoriasis; L40.1 Generalized pustular psoriasis; L40.0 Psoriasis vulgaris
Associated ICD9-CM codes 696.1 Other psoriasis; 696.0 Psoriatic arthropathy; 696.8 Psorias related dis nec

 
Equation: PASI = (0.1 * Ah * (Eh + Ih + Dh)) + (0.2 * Au * (Eu + Iu + Du)) + (0.3 * At * (Et + It + Dt)) + (0.4 * Al * (El + Il + Dl))
Default Result Unit: index
Allowable Result Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Peak Expiratory Flow Prediction
Source file: PeakExpFlow.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes J98.2 Interstitial emphysema; J43.9 Emphysema, unspecified; J98.3 Compensatory emphysema; J42 Unspecified chronic bronchitis; I27.9 Pulmonary heart disease, unspecified; I27.81 Cor pulmonale (chronic)
Associated ICD9-CM codes 518.82 Other pulmonary insuff; 416.9 Chr pulmon heart dis nos; 491.9 Chronic bronchitis nos; 518.2 Compensatory emphysema; 492.8 Emphysema nec; 518.1 Interstitial emphysema

 
Equation: PEF_Female = eTo((0.376 * ln(Age)) - (0.012 * Age) - (58.8 / Height) + 5.63)
Default Result Unit: L/min
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Equation: PEF_Male = eTo((0.544 * ln(Age)) - (0.0151 * Age) - (74.7 / Height) + 5.48)
Default Result Unit: L/min
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: cm  m  in  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 15 yr
Maximum value: 85 yr
 
 


 
Online calculator: Peak Expiratory Flow Variability in Asthma
Source file: PeakExpFlowVariability.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes J98.2 Interstitial emphysema; J43.9 Emphysema, unspecified; J98.3 Compensatory emphysema; J42 Unspecified chronic bronchitis; I27.9 Pulmonary heart disease, unspecified; I27.81 Cor pulmonale (chronic)
Associated ICD9-CM codes 518.82 Other pulmonary insuff; 416.9 Chr pulmon heart dis nos; 491.9 Chronic bronchitis nos; 518.2 Compensatory emphysema; 492.8 Emphysema nec; 518.1 Interstitial emphysema

 
Equation: Avg_Daily_Variability = 100 * (Highest_PEF - Lowest_PEF) / Highest_PEF
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Highest_PEF
Default Unit: L/min
Allowable Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: Lowest_PEF
Default Unit: L/min
Allowable Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
 


 
Online calculator: PELD Score for End-Stage Liver Disease (patients less than 12 years old)
Source file: PELD.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes Z01.818 Encounter for other preprocedural examination; Z01.812 Encounter for preprocedural laboratory examination; K74.69 Other cirrhosis of liver; K74.60 Unspecified cirrhosis of liver; K74.0 Hepatic fibrosis
Associated ICD9-CM codes 571.5 Cirrhosis of liver nos; V72.84 Preop exam unspcf

 
Equation: Age_Months = Age * 12
 
Equation: Hgt_M = rangeN1(n2_Height, Age_Months)
 
Equation: Wgt_M = rangeN1(n2_Weight, Age_Months)
 
Equation: Hgt_F = rangeN1(n1_Height, Age_Months)
 
Equation: Wgt_F = rangeN1(n1_Weight, Age_Months)
 
Equation: PELD_Score = (!Exception_Diagnoses * (10 * ((0.480 * ln(Bilirubin)) + (1.857 * ln(INR)) - (0.687 * ln(Albumin)) + Listing_Age_Factor + Growth))) + (Exception_Diagnoses * 30)
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 1
Discrete variable option: Male Variable value: 2
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Maximum value: 11.99 yr
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: cm  m  in  
 
Variable: Albumin
LOINC: 1751-7 : g/dL
Default Unit: g/dL_Alb
Allowable Units: g/dL_Alb  g/L_Alb  gm/dL_Alb  gm/L_Alb  mg/dL_Alb  mg/L_Alb  
Minimum value: 1 g/dL_Alb
Maximum value: 1000 g/dL_Alb
 
Variable: Bilirubin
LOINC: 32303-0 : mmol/L : 1975-2 : mg/dL : 59828-4 : mg/dL : 54363-7 : mcmol/L : 58941-6 : mg/dL
Default Unit: mg/dL_Bili
Allowable Units: mg/dL_Bili  mg%_Bili  mcmol/L_Bili  
Minimum value: 1 mg/dL_Bili
Maximum value: 1000 mg/dL_Bili
 
Variable: INR
LOINC: 34714-6 : ratio : 6301-6 : ratio
Default Unit: ratio
Allowable Units: fraction  ratio  %  
Minimum value: 1 ratio
Maximum value: 1000 ratio
 
Radio Button Variable: Listing
Discrete variable option: Age at listing 1 year or older Variable value: 0
Discrete variable option: Age at listing less than 1 year Variable value: 1
 
Radio Button Variable: Exception_Diagnoses
Discrete variable option: Non contributory Variable value: 0
Discrete variable option: Urea cycle disorder Variable value: 1
Discrete variable option: Organic acidemia Variable value: 1
Discrete variable option: Hepatoblastoma Variable value: 1
 
 


 
Online calculator: PFT Adjusted Predicted Values for Men MultiCalc
Source file: PulmonaryPredictM_A.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes J98.2 Interstitial emphysema; J43.9 Emphysema, unspecified; J98.3 Compensatory emphysema; J42 Unspecified chronic bronchitis; I27.9 Pulmonary heart disease, unspecified; I27.81 Cor pulmonale (chronic)
Associated ICD9-CM codes 518.82 Other pulmonary insuff; 416.9 Chr pulmon heart dis nos; 491.9 Chronic bronchitis nos; 518.2 Compensatory emphysema; 492.8 Emphysema nec; 518.1 Interstitial emphysema

 
Equation: FEV1 = Race * 1.08 * ((0.043 * Height) - (0.029 * Age) - 2.49 )
Default Result Unit: L
Allowable Result Units: mL  L  
 
Equation: FVC = Race * 1.1 * ((0.0576 * Height) - (0.0269 * Age) - 4.34 )
Default Result Unit: L
Allowable Result Units: mL  L  
 
Equation: FEV1_FVC_Ratio = 87.2 - (0.18 * Age)
Default Result Unit: %
Allowable Result Units: fraction  ratio  %  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: cm  m  in  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Radio Button Variable: Race
Discrete variable option: Caucasian Variable value: 1
Discrete variable option: Black Variable value: 0.87
Discrete variable option: Asian Variable value: 0.93
 
 


 
Online calculator: PFT Adjusted Predicted Values for Women MultiCalc
Source file: PulmonaryPredictF_A.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes J98.2 Interstitial emphysema; J43.9 Emphysema, unspecified; J98.3 Compensatory emphysema; J42 Unspecified chronic bronchitis; I27.9 Pulmonary heart disease, unspecified; I27.81 Cor pulmonale (chronic)
Associated ICD9-CM codes 518.82 Other pulmonary insuff; 416.9 Chr pulmon heart dis nos; 491.9 Chronic bronchitis nos; 518.2 Compensatory emphysema; 492.8 Emphysema nec; 518.1 Interstitial emphysema

 
Equation: FEV1 = Race * 1.08 * ((0.0395 * Height) - (0.025 * Age) - 2.6 )
Default Result Unit: L
Allowable Result Units: mL  L  
 
Equation: FVC = Race * 1.15 * ((0.0443 * Height) - (0.026 * Age) - 2.89 )
Default Result Unit: L
Allowable Result Units: mL  L  
 
Equation: FEV1_FVC_Ratio = 89.1 - (0.19 * Age)
Default Result Unit: %
Allowable Result Units: fraction  ratio  %  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: cm  m  in  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Radio Button Variable: Race
Discrete variable option: Caucasian Variable value: 1
Discrete variable option: Black Variable value: 0.87
Discrete variable option: Asian Variable value: 0.93
 
 


 
Online calculator: PFT Predicted Values for Boys MultiCalc
Source file: PulmonaryPredictB.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes J98.2 Interstitial emphysema; J43.9 Emphysema, unspecified; J98.3 Compensatory emphysema; J42 Unspecified chronic bronchitis; I27.9 Pulmonary heart disease, unspecified; I27.81 Cor pulmonale (chronic)
Associated ICD9-CM codes 518.82 Other pulmonary insuff; 416.9 Chr pulmon heart dis nos; 491.9 Chronic bronchitis nos; 518.2 Compensatory emphysema; 492.8 Emphysema nec; 518.1 Interstitial emphysema

 
Equation: FEV1 = eTo(((1.2669 + (0.0174 * Age)) * Height) - 1.2933)
Default Result Unit: L
Allowable Result Units: mL  L  
 
Equation: FVC = eTo(((1.3731 + (0.0164 * Age)) * Height) - 1.2782)
Default Result Unit: L
Allowable Result Units: mL  L  
 
Equation: FEV1_FVC_Ratio = 86.21
Default Result Unit: %
Allowable Result Units: fraction  ratio  %  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: m
Allowable Units: cm  m  in  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
 


 
Online calculator: PFT Predicted Values for Girls MultiCalc
Source file: PulmonaryPredictG.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes J98.2 Interstitial emphysema; J43.9 Emphysema, unspecified; J98.3 Compensatory emphysema; J42 Unspecified chronic bronchitis; I27.9 Pulmonary heart disease, unspecified; I27.81 Cor pulmonale (chronic)
Associated ICD9-CM codes 518.82 Other pulmonary insuff; 416.9 Chr pulmon heart dis nos; 491.9 Chronic bronchitis nos; 518.2 Compensatory emphysema; 492.8 Emphysema nec; 518.1 Interstitial emphysema

 
Equation: FEV1 = eTo(((1.5016 + (0.0119 * Age)) * Height) - 1.5974)
Default Result Unit: L
Allowable Result Units: mL  L  
 
Equation: FVC = eTo(((1.48 + (0.0127 * Age)) * Height) - 1.4057)
Default Result Unit: L
Allowable Result Units: mL  L  
 
Equation: FEV1_FVC_Ratio = 88.88
Default Result Unit: %
Allowable Result Units: fraction  ratio  %  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: m
Allowable Units: cm  m  in  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
 


 
Online calculator: PFT Predicted Values for Men MultiCalc
Source file: PulmonaryPredictM.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes J98.2 Interstitial emphysema; J43.9 Emphysema, unspecified; J98.3 Compensatory emphysema; J42 Unspecified chronic bronchitis; I27.9 Pulmonary heart disease, unspecified; I27.81 Cor pulmonale (chronic)
Associated ICD9-CM codes 518.82 Other pulmonary insuff; 416.9 Chr pulmon heart dis nos; 491.9 Chronic bronchitis nos; 518.2 Compensatory emphysema; 492.8 Emphysema nec; 518.1 Interstitial emphysema

 
Equation: FEV1 = Race * ((0.043 * Height) - (0.029 * Age) - 2.49 )
Default Result Unit: L
Allowable Result Units: mL  L  
 
Equation: FVC = Race * ((0.0576 * Height) - (0.0269 * Age) - 4.34 )
Default Result Unit: L
Allowable Result Units: mL  L  
 
Equation: FEV1_FVC_Ratio = 87.2 - (0.18 * Age)
Default Result Unit: %
Allowable Result Units: fraction  ratio  %  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: cm  m  in  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Radio Button Variable: Race
Discrete variable option: Caucasian Variable value: 1
Discrete variable option: Black Variable value: 0.87
Discrete variable option: Asian Variable value: 0.93
 
 


 
Online calculator: PFT Predicted Values for Women MultiCalc
Source file: PulmonaryPredictF.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes J98.2 Interstitial emphysema; J43.9 Emphysema, unspecified; J98.3 Compensatory emphysema; J42 Unspecified chronic bronchitis; I27.9 Pulmonary heart disease, unspecified; I27.81 Cor pulmonale (chronic)
Associated ICD9-CM codes 518.82 Other pulmonary insuff; 416.9 Chr pulmon heart dis nos; 491.9 Chronic bronchitis nos; 518.2 Compensatory emphysema; 492.8 Emphysema nec; 518.1 Interstitial emphysema

 
Equation: FEV1 = Race * ((0.0395 * Height) - (0.025 * Age) - 2.6 )
Default Result Unit: L
Allowable Result Units: mL  L  
 
Equation: FVC = Race * ((0.0443 * Height) - (0.026 * Age) - 2.89 )
Default Result Unit: L
Allowable Result Units: mL  L  
 
Equation: FEV1_FVC_Ratio = 89.1 - (0.19 * Age)
Default Result Unit: %
Allowable Result Units: fraction  ratio  %  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: cm  m  in  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Radio Button Variable: Race
Discrete variable option: Caucasian Variable value: 1
Discrete variable option: Black Variable value: 0.87
Discrete variable option: Asian Variable value: 0.93
 
 


 
Online calculator: Phenytoin Free (Unbound) Drug Level (Adjusted for Hypoalbuminemia)
Source file: PhenytoinFree.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes G40.919 Epilepsy, unspecified, intractable, without status epilepticus; G40.911 Epilepsy, unspecified, intractable, with status epilepticus; G40.909 Epilepsy, unspecified, not intractable, without status epilepticus; G40.901 Epilepsy, unspecified, not intractable, with status epilepticus
Associated ICD9-CM codes 345.90 Epilep nos w/o intr epil; 345.91 Epilepsy nos w intr epil

 
Equation: Phenytoin_Free = (0.55 * Phenytoin_Measured / Serum_Albumin) - 0.14
Default Result Unit: mcg/mL_Phenytoin
Allowable Result Units: mcg/mL_Phenytoin  mcmol/L_Phenytoin  
 
Variable: Phenytoin_Measured
Default Unit: mcg/mL_Phenytoin
Allowable Units: mcg/mL_Phenytoin  mcmol/L_Phenytoin  
 
Variable: Serum_Albumin
LOINC: 1751-7 : g/dL
Default Unit: g/dL_Alb
Allowable Units: g/dL_Alb  g/L_Alb  gm/dL_Alb  gm/L_Alb  mg/dL_Alb  mg/L_Alb  
 
 


 
Online calculator: Phenytoin Total Drug Level (Adjusted for Hypoalbuminemia and Renal Function)
Source file: PhenytoinAlb.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes G40.919 Epilepsy, unspecified, intractable, without status epilepticus; G40.911 Epilepsy, unspecified, intractable, with status epilepticus; G40.909 Epilepsy, unspecified, not intractable, without status epilepticus; G40.901 Epilepsy, unspecified, not intractable, with status epilepticus
Associated ICD9-CM codes 345.90 Epilep nos w/o intr epil; 345.91 Epilepsy nos w intr epil

 
Equation: Phenytoin_Adjusted = Phenytoin_Measured /((Serum_Albumin * Renal_Fx ) + 0.1)
Default Result Unit: mcg/mL_Phenytoin
Allowable Result Units: mcg/mL_Phenytoin  mcmol/L_Phenytoin  
 
Variable: Phenytoin_Measured
Default Unit: mcg/mL_Phenytoin
Allowable Units: mcg/mL_Phenytoin  mcmol/L_Phenytoin  
 
Radio Button Variable: Renal_Fx
Discrete variable option: Adequate Renal Function Variable value: 0.2
Discrete variable option: Creat Clearance <10 mL/min Variable value: 0.1
 
Variable: Serum_Albumin
LOINC: 1751-7 : g/dL
Default Unit: g/dL_Alb
Allowable Units: g/dL_Alb  g/L_Alb  gm/dL_Alb  gm/L_Alb  mg/dL_Alb  mg/L_Alb  
Maximum value: 4.4 g/dL_Alb
 
 


 
Online calculator: Pneumonia Mortality in Nursing Home Patients by Logistic Regression
Source file: PneumoniaMortalityNH_LR.cc
EBMcalc Version: 8.8
Associated ICD10-CM codes J12.89 Other viral pneumonia; J12.9 Viral pneumonia, unspecified; J11.00 Influenza due to unidentified influenza virus with unspecified type of pneumonia; J18.0 Bronchopneumonia, unspecified organism; J15.9 Unspecified bacterial pneumonia
Associated ICD9-CM codes 482.9 Bacterial pneumonia nos; 485 Bronchopneumonia org nos; 487.0 Influenza with pneumonia; 480.8 Viral pneumonia nec; 480.9 Viral pneumonia nos

 
Equation: Terms = (0.046 * BUN) + (0.052 * WBC) + (0.613 * Abs_Lymph) + (0.017 * Pulse) + (0.555 * Sex) + (0.310 * Activity_Score) - (0.089 * BMI) + (0.970 * Mood_Deterioration) - 4.53
 
Equation: Mortality = 100 * eTo(Terms) / (1 + eTo(Terms))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: BUN
LOINC: 3094-0 : mg/dL : 6299-2 : mg/dL : 14937-7 : mmol/L : 59570-2 : mmol/L
Default Unit: mg/dL_BUN
Allowable Units: mg/dL_BUN  mmol/L_BUN  
 
Variable: WBC
LOINC: 6690-2 : #/microL
Default Unit: 10^3/microL
Allowable Units: 10^9/L  10^3/microL  
 
Radio Button Variable: Abs_Lymph
Discrete variable option: ≥800/mcL Variable value: 0
Discrete variable option: <800/mcL Variable value: 1
 
Variable: Pulse
Default Unit: beats/min
Allowable Units: beats/min  bpm  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0
Discrete variable option: Male Variable value: 1
 
Variable: Activity_Score~ActivityScore.cc~cctotal
Maximum value: 4
 
Variable: BMI~BodyMassIndex.eq~BMI_param
 
Radio Button Variable: Mood_Deterioration
Discrete variable option: Yes Variable value: 1
Discrete variable option: No Variable value: 0
 
 


 
Online calculator: Pneumothorax Degree of Collapse
Source file: PneumoThorax.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes S21.309A Unspecified open wound of unspecified front wall of thorax with penetration into thoracic cavity, initial encounter; S27.0XXA Traumatic pneumothorax, initial encounter; J93.0 Spontaneous tension pneumothorax; J95.811 Postprocedural pneumothorax
Associated ICD9-CM codes 512.1 Iatrogenic pneumothorax; 512.8 Spont pneumothorax nec; 512.0 Spont tens pneumothorax; 860.0 Traum pneumothorax-close; 860.1 Traum pneumothorax-open

 
Equation: Percent_Pneumo = 100 * (1 - (power(Lung_Diameter,3) / power(Hemithorax_Diameter,3)))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Lung_Diameter
Default Unit: cm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
Variable: Hemithorax_Diameter
Default Unit: cm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
 


 
Online calculator: Positive Predictive Value from Raw Data
Source file: PosPredValueData.eq
EBMcalc Version: 8.8

 
Equation: Pos_Pred_Value = 100 * True_Pos / (True_Pos + False_Pos)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: True_Pos
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: False_Pos
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Positive Predictive Value of a Test
Source file: PosPredValue.eq
EBMcalc Version: 8.7

 
Equation: PPV = 100 * (Prevalence * Sensitivity) / (Prevalence * Sensitivity + ((1 - Prevalence) * (1 - Specificity)))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Prevalence
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: Sensitivity
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: Specificity
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
 
 


 
Online calculator: POSSUM Score for Orthopedic Procedure Prognosis (SI Units)
Source file: POSSUMScoreSI.cc
EBMcalc Version: 8.8
Associated ICD10-CM codes Z01.811 Encounter for preprocedural respiratory examination; Z01.810 Encounter for preprocedural cardiovascular examination; Z01.818 Encounter for other preprocedural examination; Z01.812 Encounter for preprocedural laboratory examination
Associated ICD9-CM codes V72.84 Preop exam unspcf; V72.81 Preop cardiovsclr exam; V72.82 Preop respiratory exam

 
Equation: Phys_Score = Age + Cardiac + CXR_Heart + Resp + CXR_Lung + BP + Pulse + Glasgow + BUN + Na + K + Hb + WBC + EKG
Default Result Unit: score
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Op_Score = Magnitude + Op_Variables + Blood_Loss + Contamination + Malignancy + Timing
Default Result Unit: score
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Mort_Term = eTo((0.13 * Phys_Score) + (0.16 * Op_Score) - 7.04)
 
Equation: Morb_Term = eTo((0.16 * Phys_Score) + (0.19 * Op_Score) - 5.91)
 
Equation: Mortality_Risk = 100 * Mort_Term / (1 + Mort_Term)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Morbitity_Risk = 100 * Morb_Term / (1 + Morb_Term)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
 


 
Online calculator: POSSUM Score for Orthopedic Procedure Prognosis
Source file: POSSUMScore.cc
EBMcalc Version: 8.8
Associated ICD10-CM codes Z01.811 Encounter for preprocedural respiratory examination; Z01.810 Encounter for preprocedural cardiovascular examination; Z01.818 Encounter for other preprocedural examination; Z01.812 Encounter for preprocedural laboratory examination
Associated ICD9-CM codes V72.84 Preop exam unspcf; V72.81 Preop cardiovsclr exam; V72.82 Preop respiratory exam

 
Equation: Phys_Score = Age + Cardiac + CXR_Heart + Resp + CXR_Lung + BP + Pulse + Glasgow + BUN + Na + K + Hb + WBC + EKG
Default Result Unit: score
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Op_Score = Magnitude + Op_Variables + Blood_Loss + Contamination + Malignancy + Timing
Default Result Unit: score
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Mort_Term = eTo((0.13 * Phys_Score) + (0.16 * Op_Score) - 7.04)
 
Equation: Morb_Term = eTo((0.16 * Phys_Score) + (0.19 * Op_Score) - 5.91)
 
Equation: Mortality_Risk = 100 * Mort_Term / (1 + Mort_Term)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Morbitity_Risk = 100 * Morb_Term / (1 + Morb_Term)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
 


 
Online calculator: Post Test Odds from Pre Test Odds and Likelihood Ratio MultiCalc
Source file: PostTestOdds.eq
EBMcalc Version: 8.9

 
Equation: Pre_Test_Odds = Prevalence / (1 - Prevalence)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Post_Test_Odds = Pre_Test_Odds * LR
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Post_Test_Prob = Post_Test_Odds / (1 + Post_Test_Odds)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Prevalence
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
Variable: LR
Default Unit: ratio
Allowable Units: fraction  rate  ratio  %  percent  
 
 


 
Online calculator: Post Test Odds of a Negative from Raw Data
Source file: PostTestOddsNegData.eq
EBMcalc Version: 8.8

 
Equation: Prevalence = (True_Pos + False_Neg) / (True_Pos + True_Neg + False_Pos + False_Neg)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Sensitivity = True_Pos / (True_Pos + False_Neg)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Specificity = True_Neg / (True_Neg + False_Pos)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: LR_Neg = (1-Sensitivity) / Specificity
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Pre_Test_Odds = Prevalence / (1 - Prevalence)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Post_Test_Odds_Neg = Pre_Test_Odds * LR_Neg
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: True_Pos
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: False_Pos
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: True_Neg
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: False_Neg
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Post Test Odds of a Negative Result from Sensitivity Specificity and Prevalence
Source file: PostTestOddsNegSS.eq
EBMcalc Version: 8.8

 
Equation: LR_Neg = (1-Sensitivity) / Specificity
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Pre_Test_Odds = Prevalence / (1 - Prevalence)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Post_Test_Odds_Neg = Pre_Test_Odds * LR_Neg
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Prevalence
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
Variable: Sensitivity
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
Variable: Specificity
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
 


 
Online calculator: Post Test Odds of a Positive from Raw Data
Source file: PostTestOddsPosData.eq
EBMcalc Version: 8.8

 
Equation: Prevalence = (True_Pos + False_Neg) / (True_Pos + True_Neg + False_Pos + False_Neg)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Sensitivity = True_Pos / (True_Pos + False_Neg)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Specificity = True_Neg / (True_Neg + False_Pos)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: LR_Pos = Sensitivity / (1-Specificity)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Pre_Test_Odds = Prevalence / (1 - Prevalence)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Post_Test_Odds_Pos = Pre_Test_Odds * LR_Pos
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: True_Pos
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: False_Pos
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: True_Neg
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: False_Neg
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Post Test Odds of a Positive Result from Sensitivity Specificity and Prevalence
Source file: PostTestOddsPosSS.eq
EBMcalc Version: 8.8

 
Equation: LR_Pos = Sensitivity / (1-Specificity)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Pre_Test_Odds = Prevalence / (1 - Prevalence)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Post_Test_Odds_Pos = Pre_Test_Odds * LR_Pos
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Prevalence
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
Variable: Sensitivity
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
Variable: Specificity
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
 


 
Online calculator: Post Test Probability from Pre Test Probability, Sensitivity and Specificity
Source file: PostTestProb.eq
EBMcalc Version: 8.7

 
Equation: Post_Odds_Pos = (Pre_Test_Prob * Sensitivity) / ((1 - Pre_Test_Prob) * (1-Specificity))
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Post_Test_Prob_Pos_Result = Post_Odds_Pos / (1 + Post_Odds_Pos)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Post_Odds_Neg = (Pre_Test_Prob * (1-Sensitivity)) / ((1-Pre_Test_Prob) * Specificity)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Post_Test_Prob_Neg_Result = Post_Odds_Neg / (1 + Post_Odds_Neg)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Pre_Test_Prob
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
Variable: Sensitivity
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
Variable: Specificity
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
 


 
Online calculator: Post-Test Probability from Likelihood Ratios and Multiple Test Results
Source file: PostTestProbMulti.eq
EBMcalc Version: 8.9

 
Equation: Pre_Test_Odds = Pre_Test_Prob / (1 - Pre_Test_Prob)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Post_Test_Odds = Overall_Odds
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Post_Test_Prob = Post_Test_Odds / (1 + Post_Test_Odds)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Pre_Test_Prob
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: Test_1_LR_Pos
Default Unit: ratio
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: Test_1_LR_Neg
Default Unit: ratio
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: Test_2_LR_Pos
Default Unit: ratio
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: Test_2_LR_Neg
Default Unit: ratio
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: Test_3_LR_Pos
Default Unit: ratio
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: Test_3_LR_Neg
Default Unit: ratio
Allowable Units: fraction  rate  ratio  %  percent  
 
 


 
Online calculator: Post-Test Probability from Sensitivity and Specificity of Multiple Test Results
Source file: PostTestProbMultiSS.eq
EBMcalc Version: 8.9

 
Equation: Pre_Test_Odds = Pre_Test_Prob / (100 - Pre_Test_Prob)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Test_1_LR_Pos = Test_1_Sens / (100 - Test_1_Spec)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Test_1_LR_Neg = (100 - Test_1_Sens) / (Test_1_Spec)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Test_2_LR_Pos = Test_2_Sens / (100 - Test_2_Spec)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Test_2_LR_Neg = (100 - Test_2_Sens) / (Test_2_Spec)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Test_3_LR_Pos = Test_3_Sens / (100 - Test_3_Spec)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Test_3_LR_Neg = (100 - Test_3_Sens) / (Test_3_Spec)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Post_Test_Odds = Overall_Odds
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Post_Test_Prob = 100 * Post_Test_Odds / (1 + Post_Test_Odds)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Pre_Test_Prob
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: Test_1_Sens
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: Test_1_Spec
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: Test_2_Sens
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: Test_2_Spec
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: Test_3_Sens
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: Test_3_Spec
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
 


 
Online calculator: Postoperative Cardiac Risk Prediction
Source file: PostOpCardiacRisk.cc
EBMcalc Version: 15.1
Associated ICD10-CM codes T81.11XA Postprocedural cardiogenic shock, initial encounter
Associated ICD9-CM codes 998.01 Postoperative shock, car; 410.9 Myocardial infarct nos; 410.8 Myocardial infarct nec; 410 Acute myocardial infarct

 
Equation: Terms = (Age * 0.0198) + Functional_Status + Renal_Function + ASA_Class + Procedure - 5.2529
Default Result Unit: logit
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Risk = 100 * eTo(Terms) / (1 + eTo(Terms))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Radio Button Variable: Functional_Status
Discrete variable option: Independent Variable value: 0
Discrete variable option: Partially dependent Variable value: 0.6496
Discrete variable option: Totally dependent Variable value: 1.0269
 
Radio Button Variable: Renal_Function
Discrete variable option: Normal Variable value: 0
Discrete variable option: Creatinine over 1.5 mg/dL Variable value: 0.612
Discrete variable option: Unknown Variable value: -0.0952
 
Radio Button Variable: ASA_Class
Discrete variable option: Class I Variable value: -5.1735
Discrete variable option: Class II Variable value: -3.2895
Discrete variable option: Class III Variable value: -1.9227
Discrete variable option: Class IV Variable value: -0.9527
Discrete variable option: Class V Variable value: 0
 
 


 
Online calculator: Pre Test Odds from Prevalence
Source file: PreTestOddsP.eq
EBMcalc Version: 8.8

 
Equation: Pre_Test_Odds = Prevalence / (1 - Prevalence)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Prevalence
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
 


 
Online calculator: Pre Test Odds from Raw Data
Source file: PreTestOddsData.eq
EBMcalc Version: 8.8

 
Equation: Prevalence = (True_Pos + False_Neg) / (True_Pos + True_Neg + False_Pos + False_Neg)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Pre_Test_Odds = Prevalence / (1 - Prevalence)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: True_Pos
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: False_Pos
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: True_Neg
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: False_Neg
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Predicted postoperative FEV1 following lung resection surgery (anatomic method)
Source file: PostOpFEV1AnatomicMeth.eq
EBMcalc Version: 14.1
Associated ICD10-CM codes J85.1 Abscess of lung with pneumonia; J85.0 Gangrene and necrosis of lung; D02.20 Carcinoma in situ of unspecified bronchus and lung; J98.2 Interstitial emphysema; J43.9 Emphysema, unspecified; J98.3 Compensatory emphysema; J42 Unspecified chronic bronchitis; I27.9 Pulmonary heart disease, unspecified; I27.81 Cor pulmonale (chronic)
Associated ICD9-CM codes 231.2 Ca in situ bronchus/lung; 513.0 Abscess of lung; 518.82 Other pulmonary insuff; 416.9 Chr pulmon heart dis nos; 491.9 Chronic bronchitis nos; 518.2 Compensatory emphysema; 492.8 Emphysema nec; 518.1 Interstitial emphysema

 
Equation: PPO_FEV1 = Preop_FEV1 * (1 - Y/Z)
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Variable: Preop_FEV1
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Y
Default Unit: number
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: Z
Default Unit: number
Allowable Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Predicted postoperative FEV1 following lung resection surgery (perfusion method)
Source file: PostOpFEV1PerfMeth.eq
EBMcalc Version: 14.1
Associated ICD10-CM codes J85.1 Abscess of lung with pneumonia; J85.0 Gangrene and necrosis of lung; D02.20 Carcinoma in situ of unspecified bronchus and lung; J98.2 Interstitial emphysema; J43.9 Emphysema, unspecified; J98.3 Compensatory emphysema; J42 Unspecified chronic bronchitis; I27.9 Pulmonary heart disease, unspecified; I27.81 Cor pulmonale (chronic)
Associated ICD9-CM codes 231.2 Ca in situ bronchus/lung; 513.0 Abscess of lung; 518.82 Other pulmonary insuff; 416.9 Chr pulmon heart dis nos; 491.9 Chronic bronchitis nos; 518.2 Compensatory emphysema; 492.8 Emphysema nec; 518.1 Interstitial emphysema

 
Equation: PPO_FEV1 = Preop_FEV1 * (1 - FractTotPerf)
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Variable: Preop_FEV1
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: FractTotPerf
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
 


 
Online calculator: Pregnancy Gestation by LMP and Ultrasound Biometry
Source file: GestationDate.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes O99.89 Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium; O26.90 Pregnancy related conditions, unspecified, unspecified trimester; Z33.1 Pregnant state, incidental; O09.00 Supervision of pregnancy with history of infertility, unspecified trimester; O09.291 Supervision of pregnancy with other poor reproductive or obstetric history, first trimester; O48.1 Prolonged pregnancy
Associated ICD9-CM codes 645.20 Prolonged preg-unsp; 645.21 Prolonged preg-del; 645.23 Prolonged preg-antepar; V23.5 Preg w poor reproduct hx; V23.49 Preg w poor obs hx nec; V23.0 Preg w hx of infertility; V22.2 Preg state, incidental; V72.4 Preg exam-preg unconfirm; 646.90 Preg compl nos-unspec; 646.93 Preg compl nos-antepart; 633.01 Abd preg w intraut preg

 
Variable: Crown_Rump_Length
Default Unit: mm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
Maximum value: 100 mm
 
Variable: Biparietal_Diameter
Default Unit: mm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
Variable: Head_Circumference
LOINC: 9843-4 : cm : 8287-5 : cm : 8288-3 : cm : 8290-9 : cm : 8291-7 : cm
Default Unit: mm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
Minimum value: 80 mm
Maximum value: 330 mm
 
 


 
Online calculator: Pressure Adjusted Heart Rate (For MODS calculation)
Source file: PressureAdjHR.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes R00.0 Tachycardia, unspecified; I10 Essential (primary) hypertension; R00.1 Bradycardia, unspecified
Associated ICD9-CM codes 785.0 Tachycardia nos; 401.1 Benign hypertension

 
Equation: P_Adj_HR = HR * CVP / MAP
 
Variable: HR
LOINC: 8867-4 : beats/min
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: CVP
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: MAP
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
 


 
Online calculator: Prevalence of a Finding or Disease from Test Data
Source file: PrevalenceTest.eq
EBMcalc Version: 8.8

 
Equation: Prevalence = (True_Pos + False_Neg) / (True_Pos + True_Neg + False_Pos + False_Neg)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: True_Pos
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: False_Pos
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: True_Neg
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: False_Neg
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Probability from Odds
Source file: ProbOdds.eq
EBMcalc Version: 8.7

 
Equation: Probability = Odds / (1 + Odds)
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Odds
Default Unit: ratio
Allowable Units: fraction  rate  ratio  %  percent  
 
 


 
Online calculator: Protein Bound Calcium
Source file: ProteinBoundCalcium.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes E83.42 Hypomagnesemia; E83.51 Hypocalcemia
Associated ICD9-CM codes 775.4 Hypocalcem/hypomagnes nb; 275.41 Hypocalcemia

 
Equation: Protein_Bound_Calcium = (Albumin * 8) + (Globulin *2) + 3
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Albumin
LOINC: 1751-7 : g/dL
Default Unit: g/dL_Alb
Allowable Units: g/dL_Alb  g/L_Alb  gm/dL_Alb  gm/L_Alb  mg/dL_Alb  mg/L_Alb  
 
Variable: Globulin
LOINC: 2336-6 : g/dL : 13536-8 : g/dL : 12217-6 : g/L
Default Unit: g/dL
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
 


 
Online calculator: Protein Catabolic Rate (normalized PCR)
Source file: ProteinCatabolicRateN.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z49.31 Encounter for adequacy testing for hemodialysis
Associated ICD9-CM codes V56.8 Dialysis encounter, nec; V56.31 Hemodialysis testing; V56.32 Peritoneal dialysis test; V56.0 Renal dialysis encounter; V45.1 Renal dialysis status; E879.9 Abn react-renal dialysis

 
Equation: nPCR_Anuric = 0.22 + (0.864 * ID_BUN_Rise / ID_Hours)
Default Result Unit: g/kg/day
Allowable Result Units:
 
Equation: nPCR_Total = nPCR_Anuric + ((Urine_Urea_Nitrogen * 150) / (ID_Hours * Weight))
Default Result Unit: g/kg/day
Allowable Result Units:
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
Variable: ID_Hours
Default Unit: hr
Allowable Units: sec  min  hr  
 
Variable: ID_BUN_Rise
Default Unit: mg/dL_BUN
Allowable Units: mg/dL_BUN  mmol/L_BUN  
 
Variable: Urine_Urea_Nitrogen
Default Unit: g_BUN
Allowable Units: g_BUN  gm_BUN  mmol_BUN  
 
 


 
Online calculator: Protein Catabolic Rate
Source file: ProteinCatabolicRate.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z49.31 Encounter for adequacy testing for hemodialysis
Associated ICD9-CM codes V56.8 Dialysis encounter, nec; V56.31 Hemodialysis testing; V56.32 Peritoneal dialysis test; V56.0 Renal dialysis encounter; V45.1 Renal dialysis status; E879.9 Abn react-renal dialysis

 
Equation: Kt_V = -ln((BUN_Post / BUN_Pre) - (0.008 * Hours)) + ((4 - (3.5 * BUN_Post / BUN_Pre)) * UF_Vol / Weight_Post)
 
Equation: PCR = ( 0.0076 * Kt_V * (BUN_Pre + BUN_Post)) + 0.17
Default Result Unit: g/kg/day
Allowable Result Units:
 
Variable: BUN_Pre
LOINC: 11065-0 : mg/dL
Default Unit: mg/dL_BUN
Allowable Units: mg/dL_BUN  mmol/L_BUN  
 
Variable: BUN_Post
LOINC: 11064-3 : mg/dL
Default Unit: mg/dL_BUN
Allowable Units: mg/dL_BUN  mmol/L_BUN  
 
Variable: Hours
Default Unit: hr
Allowable Units: sec  min  hr  
 
Variable: UF_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Weight_Post
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
 


 
Online calculator: Pulmonary Embolism Risk by Pisa Study (with chest x-ray)
Source file: PulmonaryEmbRiskPisaCXR.cc
EBMcalc Version: 8.9
Associated ICD10-CM codes O88.813 Other embolism in pregnancy, third trimester; O88.812 Other embolism in pregnancy, second trimester; O88.811 Other embolism in pregnancy, first trimester; O88.83 Other embolism in the puerperium; I26.99 Other pulmonary embolism without acute cor pulmonale
Associated ICD9-CM codes 673.82 Pulm embol nec-del w p/p; 673.23 Pulm embol nos-antepart; 673.22 Pulm embol nos-del w p/p; 673.21 Pulm embol nos-delivered; 673.24 Pulm embol nos-postpart; 415.19 Pulm embol/infarct nec; 673.83 Pulmon embol nec-antepar; 673.81 Pulmon embol nec-deliver; 673.84 Pulmon embol nec-postpar

 
Equation: Factor_Sum = Age_Range + Sex + Risk_Factors
Default Result Unit: #
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Risk = 100 / (1 + eTo(3.26 - Factor_Sum))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Radio Button Variable: Age_Range
Discrete variable option: <63 Variable value: 0
Discrete variable option: 63-72 Variable value: 0.59
Discrete variable option: ≥73 Variable value: 0.92
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0
Discrete variable option: Male Variable value: 0.81
 
 


 
Online calculator: Pulmonary Embolism Risk by Pisa Study (without chest x-ray)
Source file: PulmonaryEmbRiskPisa.cc
EBMcalc Version: 8.9
Associated ICD10-CM codes O88.813 Other embolism in pregnancy, third trimester; O88.812 Other embolism in pregnancy, second trimester; O88.811 Other embolism in pregnancy, first trimester; O88.83 Other embolism in the puerperium; I26.99 Other pulmonary embolism without acute cor pulmonale
Associated ICD9-CM codes 673.82 Pulm embol nec-del w p/p; 673.23 Pulm embol nos-antepart; 673.22 Pulm embol nos-del w p/p; 673.21 Pulm embol nos-delivered; 673.24 Pulm embol nos-postpart; 415.19 Pulm embol/infarct nec; 673.83 Pulmon embol nec-antepar; 673.81 Pulmon embol nec-deliver; 673.84 Pulmon embol nec-postpar

 
Equation: Factor_Sum = Age_Range + Sex + Risk_Factors
Default Result Unit: #
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Risk = 100 / (1 + eTo(3.43 - Factor_Sum))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Radio Button Variable: Age_Range
Discrete variable option: <57 Variable value: 0
Discrete variable option: 57-67 Variable value: 0.80
Discrete variable option: 68-74 Variable value: 0.87
Discrete variable option: ≥75 Variable value: 1.14
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0
Discrete variable option: Male Variable value: 0.60
 
 


 
Online calculator: Pulmonary Vascular Resistance
Source file: PulmVascResist.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes I26.09 Other pulmonary embolism with acute cor pulmonale; I27.0 Primary pulmonary hypertension
Associated ICD9-CM codes 416.0 Prim pulm hypertension; 415.0 Acute cor pulmonale

 
Equation: PVR = 80 * ( Mean_Pulmonary_Artery_Pressure - Left_Atrial_Pressure) / Pulmonary_Flow
Default Result Unit: dynes-sec-cm-5
Allowable Result Units:
 
Variable: Mean_Pulmonary_Artery_Pressure
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: Left_Atrial_Pressure
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: Pulmonary_Flow
Default Unit: L/min
Allowable Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
 


 
Online calculator: Pulse Pressure Variation (percentage)
Source file: PulsePressureVar.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z95.1 Presence of aortocoronary bypass graft; I10 Essential (primary) hypertension
Associated ICD9-CM codes V45.81 Aortocoronary bypass; 401.1 Benign hypertension

 
Equation: PPV = 100 * (P_Max - P_Min)/((P_Max + P_Min) / 2)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: P_Max
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: P_Min
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
 


 
  Q

 
Online calculator: QT Interval Correction (EKG)
Source file: QTIntervalCorrection.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes I45.81 Long QT syndrome
Associated ICD9-CM codes 426.82 Long qt syndrome

 
Equation: RR_Interval = 60 / Heart_Rate
Default Result Unit: sec
Allowable Result Units: msec  sec  
 
Equation: QTI_Corrected = QT_Interval / sqr(RR_Interval)
Default Result Unit: sec
Allowable Result Units: msec  sec  
 
Variable: QT_Interval
Default Unit: sec
Allowable Units: msec  sec  
 
Variable: Heart_Rate
LOINC: 8867-4 : beats/min
Default Unit: bpm
Allowable Units: bpm  beats/min  
 
 


 
Online calculator: QUICKI Formula for Insulin Resistance
Source file: QUICKI.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes E11.9 Type 2 diabetes mellitus without complications; E88.9 Metabolic disorder, unspecified; E88.81 Metabolic syndrome
Associated ICD9-CM codes 250.00 Diabetes mellitus; 277.7 Dysmetabolic syndrome x; 277.8 Metabolism disorder nec; 277.9 Metabolism disorder nos

 
Equation: QUICKI = 1 / (log(Fasting_Insulin) + log(Fasting_Glu))
 
Variable: Fasting_Insulin
Default Unit: mIU/mL
Allowable Units: mIU/mL  
 
Variable: Fasting_Glu
LOINC: 2345-7 : mg/dL : 2339-0 : mg/dL : 39480-9 : mmol/L : 32318-8 : mmol/L
Default Unit: mg/dL_Glu
Allowable Units: mg/dL_Glu  mmol/L_Glu  
 
 


 
  R

 
Online calculator: Red Blood Cell Volume by Radionucleotide Dilution
Source file: RedBloodCellVol.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes D64.89 Other specified anemias; D64.9 Anemia, unspecified
Associated ICD9-CM codes 285.9 Anemia nos; 285.8 Anemia nec

 
Equation: RBC_Vol = CPM_Isotope_Injected / Blood_CPM_per_mL
Default Result Unit: mL
Allowable Result Units: fL  mL  L  
 
Variable: CPM_Isotope_Injected
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: Blood_CPM_per_mL
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Renal Artery Stenosis Prediction Rule
Source file: RenalArteryStenosis.cc
EBMcalc Version: 8.7
Associated ICD10-CM codes T81.711A Complication of renal artery following a procedure, not elsewhere classified, initial encounter; N28.0 Ischemia and infarction of kidney; I77.3 Arterial fibromuscular dysplasia; I70.1 Atherosclerosis of renal artery
Associated ICD9-CM codes 440.1 Renal artery atheroscler; 447.3 Renal artery hyperplasia; 593.81 Renal vascular disorder; 997.72 Vasc comp renal artery

 
Equation: Risk = 100 / (1 + eTo(-1 * (-7.033 + 0.0521 * Age + 0.0294 * (75 - Age) * Smoker - 0.877 * Sex + 0.515 * Atherosclerosis + 0.5647 * Recent_HTN - 0.904 * Obese + 1.4902 * Abdominal_Bruit + 0.4413 * High_Cholesterol + 2.51056 * Creatinine)))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0
Discrete variable option: Male Variable value: 1
 
Variable: Creatinine
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
Radio Button Variable: Smoker
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: Atherosclerosis
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: Recent_HTN
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: Obese
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: Abdominal_Bruit
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: High_Cholesterol
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
 


 
Online calculator: Renal Failure Index
Source file: RenalFailureIndex.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis; Y84.8 Other medical procedures as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure
Associated ICD9-CM codes 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: RFI = Urine_Na * Serum_Creat / Urine_Creat
Default Result Unit: index
Allowable Result Units: none  index  #  number  logit  score  points  
 
Variable: Urine_Na
LOINC: 2955-3 : mEq/L : 35678-2 : mEq/L : 2955-3 : mmol/L : 35678-2 : mmol/L
Default Unit: mEq/L_UNa
Allowable Units: mEq/L_UNa  mmol/L_UNa  
 
Variable: Urine_Creat
LOINC: 35674-1 : mg/dL : 2161-8 : mg/dL : 14683-7 : mmol/L : 22726-4
Default Unit: mg/dL_UCr
Allowable Units: mg/dL_UCr  mg/mL_UCr  mmol/L_UCr  mcmol/L_UCr  
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
 


 
Online calculator: Residual Renal Function in Hemodialysis Patients (Kru)
Source file: ResidualRenalFunction.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes N25.9 Disorder resulting from impaired renal tubular function, unspecified; N17.9 Acute kidney failure, unspecified; N17.8 Other acute kidney failure; N17.1 Acute kidney failure with acute cortical necrosis
Associated ICD9-CM codes 637.32 Ab nos w renal fail-comp; 637.31 Ab nos w renal fail-inc; 637.30 Ab nos w renal fail-unsp; E879.9 Abn react-renal dialysis; 584.6 Ac renal fail, cort necr; 584.8 Ac renal failure nec; 669.34 Ac renal failure-postpar; 584.9 Acute renal failure nos; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: Mean_BUN = (U1 + U2) / 2
Default Result Unit: mg/dL_BUN
Allowable Result Units: mg/dL_BUN  mmol/L_BUN  
 
Equation: RRF = ID_Urine_Vol * Urine_Urea_Conc / ID_Period / Mean_BUN
Default Result Unit: mL/min
Allowable Result Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: ID_Urine_Vol
Default Unit: mL
Allowable Units: fL  mL  L  
 
Variable: Urine_Urea_Conc
Default Unit: mg/dL_UBUN
Allowable Units: mg/dL_UBUN  mmol/L_UBUN  
 
Variable: ID_Period
Default Unit: min
Allowable Units: sec  min  hr  
 
Variable: U1
Default Unit: mg/dL_BUN
Allowable Units: mg/dL_BUN  mmol/L_BUN  
 
Variable: U2
Default Unit: mg/dL_BUN
Allowable Units: mg/dL_BUN  mmol/L_BUN  
 
 


 
Online calculator: Residual Volume to Total Lung Capacity Ratio
Source file: ResidualVolTLCRatio.eq
EBMcalc Version: 8.8
Associated ICD10-CM codes J98.2 Interstitial emphysema; J43.9 Emphysema, unspecified; J98.3 Compensatory emphysema; J42 Unspecified chronic bronchitis; I27.9 Pulmonary heart disease, unspecified; I27.81 Cor pulmonale (chronic)
Associated ICD9-CM codes 518.82 Other pulmonary insuff; 416.9 Chr pulmon heart dis nos; 491.9 Chronic bronchitis nos; 518.2 Compensatory emphysema; 492.8 Emphysema nec; 518.1 Interstitial emphysema

 
Equation: Total_Lung_Cap = Insp_Reserve_Vol + Tidal_Vol + Exp_Reserve_Vol + Residual_Vol
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Equation: RV_TLC_Ratio = 100 * Residual_Vol / Total_Lung_Cap
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Exp_Reserve_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Residual_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Insp_Reserve_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Tidal_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Closing_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
 


 
Online calculator: Respiratory Quotient
Source file: RespQuotient.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes J98.2 Interstitial emphysema; J43.9 Emphysema, unspecified; J98.3 Compensatory emphysema; J42 Unspecified chronic bronchitis; I27.9 Pulmonary heart disease, unspecified; I27.81 Cor pulmonale (chronic)
Associated ICD9-CM codes 518.82 Other pulmonary insuff; 416.9 Chr pulmon heart dis nos; 491.9 Chronic bronchitis nos; 518.2 Compensatory emphysema; 492.8 Emphysema nec; 518.1 Interstitial emphysema

 
Equation: R = VCO2 / VO2
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: VCO2~CO2Prod.eq~VCO2_param
Default Unit: mL/min
Allowable Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
Variable: VO2~O2Consumption.eq~VO2_param
Default Unit: mL/min
Allowable Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
 


 
Online calculator: Reticulocyte Production Index
Source file: ReticProdIndex.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes D59.9 Acquired hemolytic anemia, unspecified; D64.9 Anemia, unspecified; D64.89 Other specified anemias
Associated ICD9-CM codes 285.8 Anemia nec; 285.9 Anemia nos; 283.9 Acq hemolytic anemia nos

 
Equation: RPI = (Hct / 45) * Retic / Maturation
LOINC of Result: 31111-8 : %
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Hct
LOINC: 4544-3 : % : 20570-8 : % : 31100-1 : % : 4545-0 : %
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: Retic
LOINC: 4679-7 : %
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
 


 
Online calculator: Rheumatoid arthritis Clinical Disease Activity Index (CDAI)
Source file: RheumatoidArthritisCDAI.cc
EBMcalc Version: 8.8

 
Equation: CDAI = SJC + TJC + PGA + EGA
Default Result Unit: score
Allowable Result Units: none  index  #  number  logit  score  points  
 
Variable: PGA
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
Maximum value: 10 #
 
Variable: EGA
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
Maximum value: 10 #
 
 


 
Online calculator: Rheumatoid arthritis Disease Activity Score with C-reactive protein (DAS28-CRP)
Source file: RheumatoidArthritisDAS28_CRP.cc
EBMcalc Version: 16.4

 
Equation: DAS28_CRP = 0.96 + (0.56 * sqr(TJC)) + (0.28 * sqr(SJC)) + (0.36 * ln(CRP + 1)) + (0.014 * GH)
Default Result Unit: score
Allowable Result Units: none  index  #  number  logit  score  points  
 
Variable: CRP
LOINC: 1988-5 : mg/L : 48421-2 : mg/L : 76485-2 : nmol/L
Default Unit: mg/L_CRP
Allowable Units: mg/L_CRP  mg/dL_CRP  nmol/L_CRP  
Maximum value: 150 mg/L_CRP
 
Variable: GH
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
Maximum value: 100 #
 
 


 
Online calculator: Rheumatoid arthritis Disease Activity Score with Erythrocyte Sedimentation Rate (DAS28-ESR)
Source file: RheumatoidArthritisDAS28_ESR.cc
EBMcalc Version: 8.8

 
Equation: DAS_28 = ( 0.56 * sqr(TJC)) + (0.28 * sqr(SJC)) + ( 0.7 * ln(ESR)) + (0.014 * GH)
Default Result Unit: score
Allowable Result Units: none  index  #  number  logit  score  points  
 
Variable: ESR
Default Unit: mm/hr
Allowable Units: mm/hr  
Minimum value: 1 mm/hr
Maximum value: 200 mm/hr
 
Variable: GH
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
Maximum value: 100 #
 
 


 
Online calculator: Rheumatoid arthritis Simplified Disease Activity Index (SDAI)
Source file: RheumatoidArthritisSDAI.cc
EBMcalc Version: 8.8

 
Equation: SDAI = SJC + TJC +PGA + EGA + CRP
Default Result Unit: score
Allowable Result Units: none  index  #  number  logit  score  points  
 
Variable: CRP
LOINC: 1988-5 : mg/L : 48421-2 : mg/L : 76485-2 : nmol/L
Default Unit: mg/dL
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
Minimum value: 0.1 mg/dL
Maximum value: 10 mg/dL
 
Variable: PGA
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
Maximum value: 10 #
 
Variable: EGA
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
Maximum value: 10 #
 
 


 
Online calculator: Right to Left Shunt Fraction Qs/Qt
Source file: Qs_Qt.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes J98.2 Interstitial emphysema; J43.9 Emphysema, unspecified; J98.3 Compensatory emphysema; J42 Unspecified chronic bronchitis; I27.9 Pulmonary heart disease, unspecified; I27.81 Cor pulmonale (chronic)
Associated ICD9-CM codes 518.82 Other pulmonary insuff; 416.9 Chr pulmon heart dis nos; 491.9 Chronic bronchitis nos; 518.2 Compensatory emphysema; 492.8 Emphysema nec; 518.1 Interstitial emphysema

 
Equation: pH2O = 47 * eTo((Temp - 37) / 18.4)
Default Result Unit: mmHg
Allowable Result Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Equation: pATM = 760 * eTo(- Altitude / 7000)
Default Result Unit: mmHg
Allowable Result Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Equation: pAO2 = pATM - pH2O - paCO2
Default Result Unit: mmHg
Allowable Result Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Equation: AaG = pAO2 - paO2
Default Result Unit: mmHg
Allowable Result Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Equation: Qs/Qt = 100 * ( 0.0031 * AaG) / ((0.0031 * AaG) + 5)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Temp
Default Unit: degC
Allowable Units: degC  degF  
Default value: 37 degC
 
Variable: Altitude
Default Unit: m
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
Variable: paCO2
LOINC: 2019-8 : mmHg : 34705-4 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
Default value: 40 mmHg
 
Variable: paO2
LOINC: 11556-8 : mmHg : 2703-7 : mmHg : 19254-2 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
 


 
Online calculator: Risk Increase / Number Needed to Harm Multicalc
Source file: RiskIncrease.eq
EBMcalc Version: 8.7

 
Equation: Abs_Risk_Increase = Exp_Event_Rate - Control_Event_Rate
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Rel_Risk_Increase = Abs_Risk_Increase / Control_Event_Rate
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: NNH = 1 / Abs_Risk_Increase
Default Result Unit: #
Allowable Result Units: none  index  #  number  logit  score  points  
 
Variable: Control_Event_Rate
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
Variable: Exp_Event_Rate
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
 


 
Online calculator: Risk of Acquiring Diabetes Mellitus (7.5-year)
Source file: DiabetesRiskPrediction.cc
EBMcalc Version: 13.2
Associated ICD10-CM codes E10.9 Type 1 diabetes mellitus without complications; E11.9 Type 2 diabetes mellitus without complications
Associated ICD9-CM codes 250.00 Diabetes uncompl type ii; 250.01 Diabetes uncompl type i; 250.0 Diabetes mellitus uncomp; 250 Diabetes mellitus

 
Equation: BMI = (Weight/2.205) / power((Height/39.37), 2)
LOINC of Result: 39156-5 : kg/m^2 : 59576-9 : kg/m^2
Default Result Unit: kg/sqm
Allowable Result Units: kg/sqm  
 
Equation: Terms = (0.028 * Age) + (0.661 * Sex) + (0.412 * MA) + (0.079 * FBS) + (0.018 * Systolic_Blood_Pressure) - (0.039 * HDL_Cholesterol) + (0.07 * BMI) + (0.481 * FMH_DM) - 13.415
Default Result Unit: logit
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Risk_of_Diabetes = 100 / (1 + eTo(-1 * Terms))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: in
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: lb
Allowable Units: mg  gm  kg  lb  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 1
Discrete variable option: Male Variable value: 0
 
Radio Button Variable: MA
Discrete variable option: Mexican American Variable value: 1
Discrete variable option: Non-Hispanic white Variable value: 0
 
Radio Button Variable: FMH_DM
Discrete variable option: No family history of DM Variable value: 0
Discrete variable option: Positive family history of DM Variable value: 1
 
Variable: FBS
LOINC: 2345-7 : mg/dL : 2339-0 : mg/dL : 39480-9 : mmol/L : 32318-8 : mmol/L
Default Unit: mg/dL_Glu
Allowable Units: mg/dL_Glu  mmol/L_Glu  
 
Variable: Systolic_Blood_Pressure
LOINC: 8480-6 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: HDL_Cholesterol
LOINC: 2085-9 : mg/dL : 14646-4 : mmol/L
Default Unit: mg/dL_Chol
Allowable Units: mg/dL_Chol  mmol/L_Chol  
 
 


 
Online calculator: Risk Reduction / Number Needed to Treat Multicalc
Source file: RiskReduc_MC.eq
EBMcalc Version: 8.7

 
Equation: Abs_Risk_Reduct = Control_Event_Rate - Exp_Event_Rate
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: Rel_Risk_Reduct = Abs_Risk_Reduct / Control_Event_Rate
Default Result Unit: fraction
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Equation: NNT = 1 / Abs_Risk_Reduct
Default Result Unit: #
Allowable Result Units: none  index  #  number  logit  score  points  
 
Variable: Control_Event_Rate
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
Variable: Exp_Event_Rate
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
 


 
  S

 
Online calculator: SCORTEN Prediction of Mortality in Toxic Epidermal Necrolysis
Source file: SCORTEN.cc
EBMcalc Version: 15.1
Associated ICD10-CM codes L51.2 Toxic epidermal necrolysis [Lyell]
Associated ICD9-CM codes 695.15 Toxic epiderm necrolysis

 
Equation: Logit = 1.237 * (R1 + R2 + R3 + R4 + R5 + R6 + R7) - 4.448
Default Result Unit: logit
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Mortality = 100 * eTo(Logit) / (1 + eTo(Logit))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
 


 
Online calculator: Sensitivity of a Test
Source file: Sensitivity.eq
EBMcalc Version: 8.7

 
Equation: Sens = 100 * True_positives / (True_positives + False_negatives)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: True_positives
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: False_negatives
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Serum Sodium Concentration Change Considering Infused and Excreted Cations
Source file: SerumSodiumConcChange.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes E87.1 Hypo-osmolality and hyponatremia; E87.0 Hyperosmolality and hypernatremia
Associated ICD9-CM codes 276.1 Hyponatremia; 276.0 Hypernatremia

 
Equation: TBW = Sex * Weight
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Equation: Vol_Delta = Vol_Infusate - Vol_Urine
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Equation: Na_Change = ((Vol_Infusate * (Na_Infusate + K_Infusate)) - (Vol_Urine * (Na_Urine + K_Urine)) - (Vol_Delta * Na_Serum)) / (TBW + Vol_Delta)
Default Result Unit: mEq/L_Na
Allowable Result Units: mEq/L_Na  mmol/L_Na  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0.5
Discrete variable option: Male Variable value: 0.6
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
Variable: Vol_Infusate
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Vol_Urine
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Na_Infusate
Default Unit: mEq/L_Na
Allowable Units: mEq/L_Na  mmol/L_Na  
 
Variable: Na_Serum
LOINC: 2951-2 : mmol/L : 2947-0 : mEq/L : 32340-2 : mEq/L : 39791-9 : mEq/L
Default Unit: mEq/L_Na
Allowable Units: mEq/L_Na  mmol/L_Na  
 
Variable: Na_Urine
LOINC: 2955-3 : mEq/L : 35678-2 : mEq/L : 2955-3 : mmol/L : 35678-2 : mmol/L
Default Unit: mEq/L_UNa
Allowable Units: mEq/L_UNa  mmol/L_UNa  
 
Variable: K_Infusate
Default Unit: mEq/L_K
Allowable Units: mEq/L_K  mmol/L_K  
 
Variable: K_Urine
Default Unit: mEq/L_UK
Allowable Units: mEq/L_UK  mmol/L_UK  
 
 


 
Online calculator: Sleep problems questionnaire
Source file: SleepProblems.cc
EBMcalc Version: 16.1

 
Equation: Total_score = FallingAsleep + WakeUp + StayingAsleep + FeelingTired
Default Result Unit: points
Allowable Result Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Sodium Change in Hyperproteinemia
Source file: SodiumProtein.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes E87.1 Hypo-osmolality and hyponatremia; E87.8 Other disorders of electrolyte and fluid balance, not elsewhere classified
Associated ICD9-CM codes 276.1 Hyponatremia; 276.9 Electrolyt/fluid dis nec

 
Equation: Na_Change = (Serum_Protein - 8) * 0.25
Default Result Unit: mmol/L_Na
Allowable Result Units: mEq/L_Na  mmol/L_Na  
 
Variable: Serum_Protein
Default Unit: g/dL
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
Minimum value: 8 g/dL
Maximum value: 100 g/dL
 
 


 
Online calculator: Sodium Change in Hypertriglyceridemia
Source file: SodiumLipids.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes E78.4 Other hyperlipidemia; E78.2 Mixed hyperlipidemia; E78.5 Hyperlipidemia, unspecified; E87.1 Hypo-osmolality and hyponatremia
Associated ICD9-CM codes 272.2 Mixed hyperlipidemia; 272.4 Hyperlipidemia nec/nos; 276.1 Hyponatremia; 276.9 Electrolyt/fluid dis nec

 
Equation: Na_Change = Triglycerides * 0.002
Default Result Unit: mEq/L_Na
Allowable Result Units: mEq/L_Na  mmol/L_Na  
 
Variable: Triglycerides
LOINC: 2571-8 : mg/dL : 3043-7 : mg/dL : 14927-8 : mmol/L : 70218-3 : mmol/L
Default Unit: mg/dL_Trig
Allowable Units: mg/dL_Trig  mmol/L_Trig  
 
 


 
Online calculator: Sodium Correction in Hyperglycemia (Hillier 1999)
Source file: SodiumHyperglycemiaHillier.eq
EBMcalc Version: 16.4
Associated ICD10-CM codes R73.9 Hyperglycemia, unspecified; E87.1 Hypo-osmolality and hyponatremia
Associated ICD9-CM codes 790.29 Oth abnormal glucose; 790.2 Abnormal glucose; 276.1 Hyponatremia; 276.9 Electrolyt/fluid dis nec

 
Equation: Corrected_Sodium = Measured_Sodium + 0.024 * (Glucose - 100)
Default Result Unit: mEq/L_Na
Allowable Result Units: mEq/L_Na  mmol/L_Na  
 
Variable: Measured_Sodium
LOINC: 2951-2 : mmol/L : 2947-0 : mEq/L : 32340-2 : mEq/L : 39791-9 : mEq/L
Default Unit: mEq/L_Na
Allowable Units: mEq/L_Na  mmol/L_Na  
 
Variable: Glucose
LOINC: 2345-7 : mg/dL : 2339-0 : mg/dL : 39480-9 : mmol/L : 32318-8 : mmol/L
Default Unit: mg/dL_Glu
Allowable Units: mg/dL_Glu  mmol/L_Glu  
 
 


 
Online calculator: Sodium Correction in Hyperglycemia (Katz 1973)
Source file: SodiumHyperglycemiaKatz.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes R73.9 Hyperglycemia, unspecified; E87.1 Hypo-osmolality and hyponatremia
Associated ICD9-CM codes 790.29 Oth abnormal glucose; 790.2 Abnormal glucose; 276.1 Hyponatremia; 276.9 Electrolyt/fluid dis nec

 
Equation: Corrected_Sodium = Measured_Sodium + 0.016 * (Glucose - 100)
Default Result Unit: mEq/L_Na
Allowable Result Units: mEq/L_Na  mmol/L_Na  
 
Variable: Measured_Sodium
LOINC: 2951-2 : mmol/L : 2947-0 : mEq/L : 32340-2 : mEq/L : 39791-9 : mEq/L
Default Unit: mEq/L_Na
Allowable Units: mEq/L_Na  mmol/L_Na  
 
Variable: Glucose
LOINC: 2345-7 : mg/dL : 2339-0 : mg/dL : 39480-9 : mmol/L : 32318-8 : mmol/L
Default Unit: mg/dL_Glu
Allowable Units: mg/dL_Glu  mmol/L_Glu  
 
 


 
Online calculator: Sodium Deficit in Hyponatremia
Source file: SodiumDeficit.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes E87.1 Hypo-osmolality and hyponatremia
Associated ICD9-CM codes 276.1 Hyponatremia

 
Equation: Na_Deficit = Sex * Normal_Wgt * (Desired_Na - Serum_Na)
Default Result Unit: mEq_Na
Allowable Result Units: mEq_Na  eq_Na  mmol_Na  mol_Na  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0.5
Discrete variable option: Male Variable value: 0.6
 
Variable: Normal_Wgt
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
Variable: Serum_Na
LOINC: 2951-2 : mmol/L : 2947-0 : mEq/L : 32340-2 : mEq/L : 39791-9 : mEq/L
Default Unit: mEq/L_Na
Allowable Units: mEq/L_Na  mmol/L_Na  
 
Variable: Desired_Na
Default Unit: mEq/L_Na
Allowable Units: mEq/L_Na  mmol/L_Na  
Default value: 140 mEq/L_Na
 
 


 
Online calculator: Sokal Score for Chronic Myeloid Leukemia
Source file: Sokal.cc
EBMcalc Version: 11.2
Associated ICD10-CM codes C92.91 Myeloid leukemia, unspecified in remission; C92.92 Myeloid leukemia, unspecified in relapse; C92.10 Chronic myeloid leukemia, BCR/ABL-positive, not having achieved remission; C92.11 Chronic myeloid leukemia, BCR/ABL-positive, in remission; C92.12 Chronic myeloid leukemia, BCR/ABL-positive, in relapse; C95.11 Chronic leukemia of unspecified cell type, in remission; C95.12 Chronic leukemia of unspecified cell type, in relapse; C95.10 Chronic leukemia of unspecified cell type not having achieved remission
Associated ICD9-CM codes 205.1 Chronic myeloid leukemia; 208.1 Chronic leukemia nos

 
Equation: Sokal_Score = eTo(0.0116 * (Age - 43.4)+ 0.0345* (Spleen_Below_Coastal_Margin - 7.51) + 0.188 * (sq(Platelets / 700) - 0.563) + 0.0887 *(Blast_Percent - 2.1))
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Spleen_Below_Coastal_Margin
Default Unit: cm
Allowable Units: cm  m  in  
 
Variable: Platelets
LOINC: 777-3 : x10(3)/mcL : 26515-7 : 10^9/L
Default Unit: x10(3)/microL
Allowable Units: /microL  /mcL  #/microL  #/mcL  cells/microL  cells/mcL  x10(6)/L  x10^6/L  x10(3)/microL  x10^3/microL  x10(3)/mcL  x10^3/mcL  x10(9)/L  x10^9/L  x10(6)/microL  x10^6/microL  x10(6)/mcL  x10^6/mcL  x10(12)/L  x10^12/L  
 
Variable: Blast_Percent
Default Unit: %
Allowable Units: fraction  ratio  %  
 
 


 
Online calculator: Solitary Pulmonary Nodule Malignancy Risk (Brock abbreviated model)
Source file: SolitaryPulmNod_ParsBrock.cc
EBMcalc Version: 13.4
Associated ICD10-CM codes R91.1 Solitary pulmonary nodule
Associated ICD9-CM codes 793.11 Solitary pulmonary nodul

 
Equation: Log_odds = Sex - (5.5537 * (power((Nodule_Size / 10), -0.5) - 1.58113883)) + Nodule_Upper_Lung + Spiculation - 6.6144
 
Equation: Cancer_Probability = 100 * (eTo(Log_odds) / (1 + eTo(Log_odds)))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0.6467
Discrete variable option: Male Variable value: 0
 
Variable: Nodule_Size
Default Unit: mm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
 


 
Online calculator: Solitary Pulmonary Nodule Malignancy Risk (Brock University)
Source file: SolitaryPulmNod_Brock.cc
EBMcalc Version: 13.4

 
Equation: Log_odds = (0.0287 * (Age - 62)) + Sex + Family_History_Lung_Ca + Emphysema - (5.3854 * (power((Nodule_Size / 10), -0.5) - 1.58113883)) + Nodule_type + Nodule_Upper_Lung - (0.0824 * (Nodule_count - 4)) + Spiculation - 6.7892
 
Equation: Cancer_Probability = 100 * (eTo(Log_odds) / (1 + eTo(Log_odds)))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0.6011
Discrete variable option: Male Variable value: 0
 
Variable: Nodule_Size
Default Unit: mm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
Radio Button Variable: Nodule_type
Discrete variable option: Nonsolid or ground-glass Variable value: -0.1276
Discrete variable option: Partially solid Variable value: 0.377
Discrete variable option: Solid Variable value: 0
 
Variable: Nodule_count
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Solitary Pulmonary Nodule Malignancy Risk (Cummings prediction model: Bayesian approach)
Source file: SolitaryPulmNod_Cummings.cc
EBMcalc Version: 13.4
Associated ICD10-CM codes R91.1 Solitary pulmonary nodule
Associated ICD9-CM codes 793.11 Solitary pulmonary nodul

 
Equation: Post_test_odds = 0.28 * Patient_age * Nodule_size * Edge_on_CXR * Tomographic_appearance * Edge_by_CT * Calcification_on_tomography * Calcification_on_CT * Growth_rate * Location * Max_cavity_wall_thickness * Smoking_history * Hemoptysis * Previous_malignancy
 
Equation: Cancer_probability = 100 * Post_test_odds / (1 + Post_test_odds)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
 


 
Online calculator: Solitary Pulmonary Nodule Malignancy Risk (Mayo Clinic model)
Source file: SolitaryPulmNod.cc
EBMcalc Version: 8.7
Associated ICD10-CM codes R91.1 Solitary pulmonary nodule
Associated ICD9-CM codes 793.11 Solitary pulmonary nodul

 
Equation: X = (0.0391 * Age) + (0.7917 * Smoker) + (1.3388 * Cancer) + (0.1274 * Nodule_Diameter) + (1.0407 * Spiculation) + (0.7838 * Upper_Lobe) - 6.8272
 
Equation: Malig_Probability = 100 * eTo(X) / ( 1 + eTo(X))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Radio Button Variable: Smoker
Discrete variable option: Current or former Variable value: 1
Discrete variable option: Never smoker Variable value: 0
 
Radio Button Variable: Cancer
Discrete variable option: Extrathoracic cancer more than 5 years prior Variable value: 1
Discrete variable option: None Variable value: 0
 
Variable: Nodule_Diameter
Default Unit: mm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
Radio Button Variable: Spiculation
Discrete variable option: Yes Variable value: 1
Discrete variable option: No Variable value: 0
 
Radio Button Variable: Upper_Lobe
Discrete variable option: Yes Variable value: 1
Discrete variable option: No Variable value: 0
 
 


 
Online calculator: Solitary Pulmonary Nodule Malignancy Risk (Veterans Affairs model)
Source file: SolitaryPulmNod_VA.cc
EBMcalc Version: 11.2
Associated ICD10-CM codes R91.1 Solitary pulmonary nodule
Associated ICD9-CM codes 793.11 Solitary pulmonary nodul

 
Equation: X = (0.0779 * Age) + (2.061 * Smoker) - (0.0567 * Years_Quit_Smoking) + (0.112 * Nodule_Diameter) - 8.404
 
Equation: Malig_Probability = 100 * eTo(X) / ( 1 + eTo(X))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Radio Button Variable: Smoker
Discrete variable option: Current or former Variable value: 1
Discrete variable option: Never smoker Variable value: 0
 
Variable: Years_Quit_Smoking
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Nodule_Diameter
Default Unit: mm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
 


 
Online calculator: Specificity of a Test
Source file: Specificity.eq
EBMcalc Version: 8.7

 
Equation: Spec = 100 * True_Negatives / (True_Negatives + False_Positives)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: True_Negatives
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
Variable: False_Positives
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Spinal Manipulation Success Prediction for Low Back Pain
Source file: SpinalManipSuccess.cc
EBMcalc Version: 8.7
Associated ICD10-CM codes M54.89 Other dorsalgia; M54.9 Dorsalgia, unspecified; M54.5 Low back pain
Associated ICD9-CM codes 724 Back disorder nec & nos; 724.5 Backache nos; 724.9 Back disorder nos

 
Equation: Predictors = Duration + Hip_35_Degree_Rot + Lumbar_Hypomobility + (FABQ_Work > 19) + No_Distal_Symptoms
Default Result Unit: points
Allowable Result Units: none  index  #  number  logit  score  points  
 
Radio Button Variable: Duration
Discrete variable option: <16 Days Variable value: 1
Discrete variable option: 16 or more days Variable value: 0
 
Radio Button Variable: Hip_35_Degree_Rot
Discrete variable option: Yes Variable value: 1
Discrete variable option: No Variable value: 0
 
Radio Button Variable: Lumbar_Hypomobility
Discrete variable option: Yes Variable value: 1
Discrete variable option: No Variable value: 0
 
Variable: FABQ_Work~FearAvoidWork.cc~FABQ_param
Default Unit: points
Allowable Units: none  index  #  number  logit  score  points  
 
Radio Button Variable: No_Distal_Symptoms
Discrete variable option: Yes Variable value: 1
Discrete variable option: No Variable value: 0
 
 


 
Online calculator: Stool Osmolal Gap
Source file: StoolsOsmolality.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes R19.7 Diarrhea, unspecified
Associated ICD9-CM codes 787.91 Diarrhea

 
Equation: SOG = Stool_Osm - (2 * (Stool_Na + Stool_K))
Default Result Unit: mOsm/kg
Allowable Result Units: mOsm/kg  mOsm/dL  
 
Variable: Stool_Osm
LOINC: 2693-0 : mOsm/kg
Default Unit: mOsm/kg
Allowable Units: mOsm/kg  mOsm/dL  
 
Variable: Stool_Na
LOINC: 15207-4 : mEq/L
Default Unit: mEq/L_SNa
Allowable Units: mEq/L_SNa  mmol/L_SNa  
 
Variable: Stool_K
LOINC: 25506-7 : mEq/L
Default Unit: mEq/L_SK
Allowable Units: mEq/L_SK  mmol/L_SK  
 
 


 
Online calculator: Stroke Risk in Diabetes Type 2 UKPDS 60
Source file: StrokeRiskDiabetes.cc
EBMcalc Version: 8.8
Associated ICD10-CM codes I67.9 Cerebrovascular disease, unspecified; I67.89 Other cerebrovascular disease; E11.9 Type 2 diabetes mellitus without complications; E10.9 Type 1 diabetes mellitus without complications; E10.65 Type 1 diabetes mellitus with hyperglycemia; E11.65 Type 2 diabetes mellitus with hyperglycemia
Associated ICD9-CM codes 437.9 Cerebrovasc disease nos; 437.8 Cerebrovasc disease nec; 250.00 Dmii wo cmp nt st uncntr; 250.01 Dmi wo cmp nt st uncntrl; 250.03 Dmi wo cmp uncntrld; 250.02 Dmii wo cmp uncntrld

 
Equation: Cholesterol_Ratio = Total_Cholesterol / HDL_Cholesterol
 
Equation: Factors = 0.00186 * power(1.092, (Age - 55)) * power(0.7, Sex) * power(1.547, Cigarette_smoker) * power(8.554, Atrial_fibrillation) * power(1.122, ((Systolic_Blood_Pressure - 135.5))/10) * power(1.138, (Cholesterol_Ratio - 5.11))
 
Equation: Risk = 100 * (1 - eTo( Factors * power(1.145, Years_DM) * (1 - power(1.145, Risk_Interval)) / 0.145))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Total_Cholesterol
LOINC: 2093-3 : mg/dL : 14647-2 : mmol/L
Default Unit: mg/dL_Chol
Allowable Units: mg/dL_Chol  mmol/L_Chol  
 
Variable: HDL_Cholesterol
LOINC: 2085-9 : mg/dL : 14646-4 : mmol/L
Default Unit: mg/dL_Chol
Allowable Units: mg/dL_Chol  mmol/L_Chol  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Systolic_Blood_Pressure
LOINC: 8480-6 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 1
Discrete variable option: Male Variable value: 0
 
Radio Button Variable: Cigarette_smoker
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Radio Button Variable: Atrial_fibrillation
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Variable: Years_DM
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Risk_Interval
Default Unit: yr
Allowable Units: mo  yr  
 
 


 
Online calculator: Stroke Risk in Female Patients 55-84 Years Old (Framingham data)
Source file: StrokeRiskFraminghamF.cc
EBMcalc Version: 8.9
Associated ICD10-CM codes E11.65 Type 2 diabetes mellitus with hyperglycemia; E10.65 Type 1 diabetes mellitus with hyperglycemia; E10.9 Type 1 diabetes mellitus without complications; E11.9 Type 2 diabetes mellitus without complications; I67.89 Other cerebrovascular disease; I67.9 Cerebrovascular disease, unspecified
Associated ICD9-CM codes 437.9 Cerebrovasc disease nos; 437.8 Cerebrovasc disease nec; 250.00 Dmii wo cmp nt st uncntr; 250.01 Dmi wo cmp nt st uncntrl; 250.03 Dmi wo cmp uncntrld; 250.02 Dmii wo cmp uncntrld

 
Equation: Risk_Factor_Diff = (Age * 0.0657) + (Sys_BP * 0.0197) - (Sys_BP * (HTN_Med > 0) * 0.0134) + HTN_Med + DM + Cig + CVD + AFib + LVH - 7.5766
 
Equation: Risk_During_Period = 100 * (1 - power(Risk_Period_Factor, eTo(Risk_Factor_Diff)))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 55 yr
Maximum value: 84 yr
 
Variable: Sys_BP
LOINC: 8480-6 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
 


 
Online calculator: Stroke Risk in Male Patients 55-84 Years Old (Framingham data)
Source file: StrokeRiskFraminghamM.cc
EBMcalc Version: 8.9
Associated ICD10-CM codes E11.65 Type 2 diabetes mellitus with hyperglycemia; E10.65 Type 1 diabetes mellitus with hyperglycemia; E10.9 Type 1 diabetes mellitus without complications; E11.9 Type 2 diabetes mellitus without complications; I67.89 Other cerebrovascular disease; I67.9 Cerebrovascular disease, unspecified
Associated ICD9-CM codes 437.9 Cerebrovasc disease nos; 437.8 Cerebrovasc disease nec; 250.00 Dmii wo cmp nt st uncntr; 250.01 Dmi wo cmp nt st uncntrl; 250.03 Dmi wo cmp uncntrld; 250.02 Dmii wo cmp uncntrld

 
Equation: Risk_Factor_Diff = (Age * 0.0505) + (Sys_BP * 0.014) + HTN_Med + DM + Cig + CVD + AFib + LVH - 5.677
 
Equation: Risk_During_Period = 100 * (1 - power(Risk_Period_Factor, eTo(Risk_Factor_Diff)))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 55 yr
Maximum value: 84 yr
 
Variable: Sys_BP
LOINC: 8480-6 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
 


 
Online calculator: Stroke Risk in Patients 55-84 Years Old (Framingham data)
Source file: StrokeRiskFramingham.cc
EBMcalc Version: 8.9
Associated ICD10-CM codes E11.65 Type 2 diabetes mellitus with hyperglycemia; E10.65 Type 1 diabetes mellitus with hyperglycemia; E10.9 Type 1 diabetes mellitus without complications; E11.9 Type 2 diabetes mellitus without complications; I67.89 Other cerebrovascular disease; I67.9 Cerebrovascular disease, unspecified
Associated ICD9-CM codes 437.9 Cerebrovasc disease nos; 437.8 Cerebrovasc disease nec; 250.00 Dmii wo cmp nt st uncntr; 250.01 Dmi wo cmp nt st uncntrl; 250.03 Dmi wo cmp uncntrld; 250.02 Dmii wo cmp uncntrld

 
Equation: Risk_Factor_Diff = (Age * Age_Factor) + (Sys_BP * BP_Factor) + (Sys_BP * (HTN_Med > 0) * Interaction_Factor) + HTN_Med + DM + Cig + CVD + AFib + LVH - Avg_Risk
 
Equation: Risk_During_Period = 100 * (1 - power(Risk_Period_Factor, eTo(Risk_Factor_Diff)))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
Minimum value: 55 yr
Maximum value: 84 yr
 
Variable: Sys_BP
LOINC: 8480-6 : mmHg
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
 


 
Online calculator: Survey Sample Size with Population Correction
Source file: SurveySampleSizeFinite.eq
EBMcalc Version: 8.7

 
Equation: Sample_Size = (power(Conf_Level, 2) * 0.25) / power((Conf_Interval / 100), 2)
 
Equation: Corrected_Sample_Size = Sample_Size / (1 + ((Sample_Size - 1) / Population))
 
Radio Button Variable: Conf_Level
Discrete variable option: 90% Variable value: 1.645
Discrete variable option: 95% Variable value: 1.96
Discrete variable option: 99% Variable value: 2.576
 
Variable: Conf_Interval
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
Variable: Population
Default Unit: #
Allowable Units: none  index  #  number  logit  score  points  
 
 


 
Online calculator: Survey Sample Size
Source file: SurveySampleSize.eq
EBMcalc Version: 8.7

 
Equation: Sample_Size = (power(Conf_Level, 2) * 0.25) / power((Conf_Interval / 100), 2)
 
Radio Button Variable: Conf_Level
Discrete variable option: 90% Variable value: 1.645
Discrete variable option: 95% Variable value: 1.96
Discrete variable option: 99% Variable value: 2.576
 
Variable: Conf_Interval
Default Unit: %
Allowable Units: fraction  rate  ratio  %  percent  
 
 


 
Online calculator: Systemic Vascular Resistance
Source file: SystemicVascRes.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes Z95.1 Presence of aortocoronary bypass graft; I10 Essential (primary) hypertension
Associated ICD9-CM codes V45.81 Aortocoronary bypass; 401.1 Benign hypertension

 
Equation: SVR = 80 * ( Mean_Aortic_Pressure - Right_Atrial_Pressure) / Systemic_Flow
Default Result Unit: dynes-sec-cm-5
Allowable Result Units:
 
Variable: Mean_Aortic_Pressure
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: Right_Atrial_Pressure
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: Systemic_Flow
Default Unit: L/min
Allowable Units: mL/hr  mL/min  mL/sec  L/min  L/sec  
 
 


 
Online calculator: Systolic Murmur Significance Probability
Source file: SystolicMurmur.cc
EBMcalc Version: 8.7
Associated ICD10-CM codes R01.1 Cardiac murmur, unspecified
Associated ICD9-CM codes 785.2 Cardiac murmurs nec

 
Equation: Probability = 100 * ( 1 / (1 + eTo(3.65 - (0.074 * Age) - (1.77 * Sex) - (1.61 * Grade))))
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0
Discrete variable option: Male Variable value: 1
 
Radio Button Variable: Grade
Discrete variable option: ≥3/6 Variable value: 1
Discrete variable option: <3/6 Variable value: 0
 
 


 
Online calculator: Systolic Pressure Variation (percentage)
Source file: SystolicPressureVar.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z95.1 Presence of aortocoronary bypass graft; I10 Essential (primary) hypertension
Associated ICD9-CM codes V45.81 Aortocoronary bypass; 401.1 Benign hypertension

 
Equation: SPV = 100 * (Sys_Max - Sys_Min)/((Sys_Max + Sys_Min) / 2)
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Sys_Max
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: Sys_Min
Default Unit: mmHg
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
 


 
  T

 
Online calculator: Time Averaged Concentration of Urea in Hemodialysis
Source file: TimeAveragedConcUrea.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z49.31 Encounter for adequacy testing for hemodialysis; Z49.32 Encounter for adequacy testing for peritoneal dialysis
Associated ICD9-CM codes V56.8 Dialysis encounter, nec; V56.31 Hemodialysis testing; V56.0 Renal dialysis encounter; V45.1 Renal dialysis status

 
Equation: TAC_Urea = ( (HD_Time * (Pre_HD_BUN + Post_HD_BUN)) + (ID_Time * (Post_HD_BUN + Next_Pre_HD_BUN)) ) / (2 * (ID_Time + HD_Time))
 
Variable: HD_Time
Default Unit: hr
Allowable Units: sec  min  hr  
Default value: 4 hr
 
Variable: ID_Time
Default Unit: hr
Allowable Units: sec  min  hr  
Default value: 44 hr
 
Variable: Pre_HD_BUN
LOINC: 11065-0 : mg/dL
Default Unit: mg/dL_BUN
Allowable Units: mg/dL_BUN  mmol/L_BUN  
 
Variable: Post_HD_BUN
LOINC: 11064-3 : mg/dL
Default Unit: mg/dL_BUN
Allowable Units: mg/dL_BUN  mmol/L_BUN  
 
Variable: Next_Pre_HD_BUN
Default Unit: mg/dL_BUN
Allowable Units: mg/dL_BUN  mmol/L_BUN  
 
 


 
Online calculator: TIPS Risk predictor / Survival predictor (Transjugular Intrahepatic Portosystemic Shunt)
Source file: TipsRisk.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes K70.30 Alcoholic cirrhosis of liver without ascites; K74.69 Other cirrhosis of liver; K74.60 Unspecified cirrhosis of liver; K74.0 Hepatic fibrosis; K76.6 Portal hypertension
Associated ICD9-CM codes 789.5 Ascites; 572.3 Portal hypertension; 571.5 Cirrhosis of liver nos; 571.2 Alcohol cirrhosis liver

 
Equation: Risk_Score = (0.957 * ln(Creat)) + (0.378 * ln(Bili)) + (1.12 * ln(INR)) + (0.643 * Cause)
Default Result Unit: score
Allowable Result Units: none  index  #  number  logit  score  points  
 
Equation: Survival = power(Days, eTo(Risk_Score - 1.127))
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL_Cr
Allowable Units: mg/dL_Cr  mcmol/L_Cr  mmol/L_Cr  
 
Variable: Bili
LOINC: 32303-0 : mmol/L : 1975-2 : mg/dL : 59828-4 : mg/dL : 54363-7 : mcmol/L : 58941-6 : mg/dL
Default Unit: mg/dL_Bili
Allowable Units: mg/dL_Bili  mg%_Bili  mcmol/L_Bili  
 
Variable: INR
LOINC: 34714-6 : ratio : 6301-6 : ratio
Default Unit: ratio
Allowable Units: fraction  rate  ratio  %  percent  
 
Radio Button Variable: Cause
Discrete variable option: Alcoholic or Cholestatic Variable value: 0
Discrete variable option: Viral or other liver disese Variable value: 1
 
Radio Button Variable: Days
Discrete variable option: 1 Variable value: 0.990
Discrete variable option: 7 Variable value: 0.966
Discrete variable option: 30 Variable value: 0.860
Discrete variable option: 90 Variable value: 0.707
Discrete variable option: 183 Variable value: 0.621
Discrete variable option: 365 Variable value: 0.551
Discrete variable option: 730 Variable value: 0.428
 
 


 
Online calculator: Total Body Water (BIA formula)
Source file: TBW_BEI.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes E86.0 Dehydration
Associated ICD9-CM codes 276.51 Dehydration

 
Equation: TBW = (-0.07493713 * Age) - (1.01767992 * Sex) + (0.12703384 * Height) - (0.04012056 * Weight) + (0.57894981 * Diabetes) - (0.00067247 * Weight * Weight) - (0.0348146 * Age * Sex) + (0.11262857 * Sex * Weight) + (0.00104135 * Age * Weight) + (0.00186104 * Height * Weight)
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Radio Button Variable: Sex
Discrete variable option: Female Variable value: 0
Discrete variable option: Male Variable value: 1
 
Radio Button Variable: Diabetes
Discrete variable option: No Variable value: 0
Discrete variable option: Yes Variable value: 1
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
 


 
Online calculator: Total Body Water Estimation Based on Weight Alone
Source file: TBW_58.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes E86.0 Dehydration
Associated ICD9-CM codes 276.51 Dehydration

 
Equation: TBW = Weight * 0.58
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
 


 
Online calculator: Total Body Water in Men (Humes-Weyer formula)
Source file: TBW_M_Humes.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes E86.0 Dehydration
Associated ICD9-CM codes 276.51 Dehydration

 
Equation: TBW=(0.194786 * Height) + (0.296785 * Weight) - 14.012934
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
 


 
Online calculator: Total Body Water in Men (Johansson formula)
Source file: TBW_M_Johansson.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes E86.0 Dehydration
Associated ICD9-CM codes 276.51 Dehydration

 
Equation: TBW = (-0.078 * Age) + (0.312 * Weight) + (0.192 * Height) - 10.759
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
 


 
Online calculator: Total Body Water in Men (Lee formula)
Source file: TBW_M_Lee.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes E86.0 Dehydration
Associated ICD9-CM codes 276.51 Dehydration

 
Equation: TBW = (0.243057 * Height) + (0.366248 * Weight) - 28.3497
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
 


 
Online calculator: Total Body Water in Men (Watson formula)
Source file: TBW_M_Watson.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes E86.0 Dehydration
Associated ICD9-CM codes 276.51 Dehydration

 
Equation: TBW = 2.447 - (0.09156 * Age) + (0.1074 * Height) + (0.3362 * Weight)
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
 


 
Online calculator: Total Body Water in Women (Humes-Weyer formula)
Source file: TBW_W_Humes.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes E86.0 Dehydration
Associated ICD9-CM codes 276.51 Dehydration

 
Equation: TBW=(0.344546 * Height) + (0.183809 * Weight) - 35.270121
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
 


 
Online calculator: Total Body Water in Women (Johansson formula)
Source file: TBW_W_Johansson.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes E86.0 Dehydration
Associated ICD9-CM codes 276.51 Dehydration

 
Equation: TBW = (-0.0004 * Age) + (0.214 * Weight) + (0.294 * Height) - 29.994
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
 


 
Online calculator: Total Body Water in Women (Lee formula)
Source file: TBW_W_Lee.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes E86.0 Dehydration
Associated ICD9-CM codes 276.51 Dehydration

 
Equation: TBW = (0.262513 * Height) + (0.232948 * Weight) - 26.6224
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
 


 
Online calculator: Total Body Water in Women (Watson formula)
Source file: TBW_W_Watson.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes E86.0 Dehydration
Associated ICD9-CM codes 276.51 Dehydration

 
Equation: TBW = (0.1069 * Height) + (0.2466 * Weight) - 2.097
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
 


 
Online calculator: Total Daily Energy Requirement Estimate
Source file: TotalDailyEnergyReq.eq
EBMcalc Version: 8.7

 
Equation: TDER_Females = (655.1 + (9.563 * Weight) + (1.85 * Height) - (4.676 * Age)) * Activity * Injury
Default Result Unit: kcal/day
Allowable Result Units: kcal/day  
 
Equation: TDER_Males = (66.5 + (13.75 * Weight) + (5.003 * Height) - (6.775 * Age)) * Activity * Injury
Default Result Unit: kcal/day
Allowable Result Units: kcal/day  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: cm  m  in  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Radio Button Variable: Activity
Discrete variable option: Confined to bed Variable value: 1.2
Discrete variable option: Out of bed Variable value: 1.3
 
Radio Button Variable: Injury
Discrete variable option: No Injury or surgery Variable value: 1.0
Discrete variable option: Minor surgery Variable value: 1.05
Discrete variable option: Major surgery Variable value: 1.15
Discrete variable option: Mild infection Variable value: 1.1
Discrete variable option: Moderate infection Variable value: 1.3
Discrete variable option: Severe infection Variable value: 1.6
Discrete variable option: Skeletal trauma Variable value: 1.275
Discrete variable option: Head injury with steroid therapy Variable value: 1.6
Discrete variable option: Blunt trauma Variable value: 1.25
Discrete variable option: Burn: 20% Variable value: 1.25
Discrete variable option: Burn: 20-40% Variable value: 1.85
Discrete variable option: Burn >40% Variable value: 1.95
 
 


 
Online calculator: Total Lung Capacity
Source file: TotalLungCap.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes J98.2 Interstitial emphysema; J43.9 Emphysema, unspecified; J98.3 Compensatory emphysema; J42 Unspecified chronic bronchitis; I27.9 Pulmonary heart disease, unspecified; I27.81 Cor pulmonale (chronic)
Associated ICD9-CM codes 518.82 Other pulmonary insuff; 416.9 Chr pulmon heart dis nos; 491.9 Chronic bronchitis nos; 518.2 Compensatory emphysema; 492.8 Emphysema nec; 518.1 Interstitial emphysema

 
Equation: Total_Lung_Cap = Insp_Reserve_Vol + Tidal_Vol + Exp_Reserve_Vol + Residual_Vol
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Variable: Insp_Reserve_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Tidal_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Exp_Reserve_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Residual_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
 


 
Online calculator: Transferrin Receptor-Ferritin Index for Diagnosis of Iron deficiency Anemia
Source file: TransferrinReceptorIndex.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes D50.9 Iron deficiency anemia, unspecified; D50.8 Other iron deficiency anemias; D50.8 Other iron deficiency anemias; D64.9 Anemia, unspecified; D64.89 Other specified anemias
Associated ICD9-CM codes 285.8 Anemia nec; 285.9 Anemia nos; 280.1 Iron def anemia dietary; 280.8 Iron defic anemia nec; 280.9 Iron defic anemia nos

 
Equation: TR_Ferritin_Index = Transferrin_Receptor / log(Ferritin)
Default Result Unit: index
Allowable Result Units: none  index  #  number  logit  score  points  
 
Variable: Transferrin_Receptor
LOINC: 30248-9 : mg/L : 33210-6 : nmol/L
Default Unit: mg/L_TfR
Allowable Units: mg/L_TfR  nmol/L_TfR  
 
Variable: Ferritin
LOINC: 2276-4 : ng/mL : 24373-3 : ng/mL : 20567-4 : ng/mL
Default Unit: mcg/L_Ferritin
Allowable Units: mcg/L_Ferritin  ng/mL_Ferritin  pmol/L_Ferritin  
 
 


 
Online calculator: Transferrin Saturation
Source file: Transferrin.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes D50.9 Iron deficiency anemia, unspecified; D50.8 Other iron deficiency anemias; D50.8 Other iron deficiency anemias; D64.9 Anemia, unspecified; D64.89 Other specified anemias
Associated ICD9-CM codes 285.8 Anemia nec; 285.9 Anemia nos; 280.1 Iron def anemia dietary; 280.8 Iron defic anemia nec; 280.9 Iron defic anemia nos

 
Equation: Transferrin_Saturation = (Fe / TIBC) * 100
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Fe
LOINC: 2498-4 : mcg/L : 14798-3 : mcmol/L
Default Unit: mcg/dL_Fe
Allowable Units: mcg/dL_Fe  mcg/L_Fe  mcmol/L_Fe  
 
Variable: TIBC
LOINC: 2500-7 : mcg/dL : 14800-7 : mcmol/L
Default Unit: mcg/dL_TIBC
Allowable Units: mcg/dL_TIBC  mcmol/L_TIBC  
 
 


 
Online calculator: Transtubular Potassium Gradient at CCD
Source file: TranstubularKGrad.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes N25.9 Disorder resulting from impaired renal tubular function, unspecified; E87.8 Other disorders of electrolyte and fluid balance, not elsewhere classified
Associated ICD9-CM codes 255.1 Hyperaldosteronism; 276.9 Electrolyt/fluid dis nec; 753.3 Kidney anomaly nec; 585 Chronic renal failure; 588.8 Impaired renal funct nec; 588.9 Impaired renal funct nos

 
Equation: TTKG = (Urine_K / Serum_K) / (Urine_Osm / Serum_Osm)
Default Result Unit: #
Allowable Result Units: none  index  #  number  logit  score  points  
 
Variable: Urine_K
LOINC: 2828-2 : mEq/L
Default Unit: mEq/L_K
Allowable Units: mEq/L_K  mmol/L_K  
 
Variable: Serum_K
LOINC: 2823-3 : mEq/L : 6298-4 : mEq/L
Default Unit: mEq/L_K
Allowable Units: mEq/L_K  mmol/L_K  
 
Variable: Urine_Osm
LOINC: 2695-5 : mOsm/kg
Default Unit: mOsm/kg
Allowable Units: mOsm/kg  mOsm/dL  
 
Variable: Serum_Osm
LOINC: 2692-2 : mOsm/kg : 2696-3 : mOsm/kg
Default Unit: mOsm/kg
Allowable Units: mOsm/kg  mOsm/dL  
 
 


 
Online calculator: True Negative Ratio from Specificity and Prevalence
Source file: TrueNegativeRatioSP.eq
EBMcalc Version: 8.8

 
Equation: True_Neg = Specificity * (1 - Prevalence)
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Prevalence
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
Variable: Specificity
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
 


 
Online calculator: True Positive Ratio from Sensitivity and Prevalence
Source file: TruePositiveRatioSP.eq
EBMcalc Version: 8.8

 
Equation: True_Pos = Sensitivity * Prevalence
Default Result Unit: ratio
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Prevalence
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
Variable: Sensitivity
Default Unit: fraction
Allowable Units: fraction  rate  ratio  %  percent  
Maximum value: 1 fraction
 
 


 
  U

 
Online calculator: Urea Reduction Percentage in Hemodialysis (PRU)
Source file: UreaReducPercent.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes Z49.31 Encounter for adequacy testing for hemodialysis; Z49.31 Encounter for adequacy testing for hemodialysis
Associated ICD9-CM codes V56.0 Renal dialysis encounter; V45.1 Renal dialysis status; V56.32 Peritoneal dialysis test; V56.31 Hemodialysis testing; V56.8 Dialysis encounter, nec

 
Equation: PRU = 100 * (Urea_Pre_HD - Urea_Post_HD) / Urea_Pre_HD
Default Result Unit: %
Allowable Result Units: fraction  rate  ratio  %  percent  
 
Variable: Urea_Pre_HD
LOINC: 11065-0 : mg/dL
Default Unit: mg/dL_BUN
Allowable Units: mg/dL_BUN  mmol/L_BUN  
 
Variable: Urea_Post_HD
LOINC: 11064-3 : mg/dL
Default Unit: mg/dL_BUN
Allowable Units: mg/dL_BUN  mmol/L_BUN  
 
 


 
Online calculator: Urea Reduction Ratio in Hemodialysis (URR)
Source file: UreaReductRatio.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes Z49.31 Encounter for adequacy testing for hemodialysis; Z49.31 Encounter for adequacy testing for hemodialysis
Associated ICD9-CM codes V56.0 Renal dialysis encounter; V45.1 Renal dialysis status; V56.32 Peritoneal dialysis test; V56.31 Hemodialysis testing; V56.8 Dialysis encounter, nec

 
Equation: URR = 100 * ( 1 - (Urea_Post_HD / Urea_Pre_HD))
Default Result Unit: %
Allowable Result Units: fraction  ratio  %  
 
Variable: Urea_Post_HD
LOINC: 11064-3 : mg/dL
Default Unit: mg/dL_BUN
Allowable Units: mg/dL_BUN  mmol/L_BUN  
 
Variable: Urea_Pre_HD
LOINC: 11065-0 : mg/dL
Default Unit: mg/dL_BUN
Allowable Units: mg/dL_BUN  mmol/L_BUN  
 
 


 
Online calculator: Urinary Protein Excretion Estimation
Source file: UrinaryProteinExcretion.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes N08 Glomerular disorders in diseases classified elsewhere; Z87.441 Personal history of nephrotic syndrome; Z49.31 Encounter for adequacy testing for hemodialysis; Z49.31 Encounter for adequacy testing for hemodialysis
Associated ICD9-CM codes 581 Nephrotic syndrome; 581.81 Nephrotic syn in oth dis; V56.0 Renal dialysis encounter; V45.1 Renal dialysis status; V56.32 Peritoneal dialysis test; V56.31 Hemodialysis testing; V56.8 Dialysis encounter, nec

 
Equation: Protein_Excreted = Spot_Urine_Protein / Spot_Urine_Creat
Default Result Unit: g/day
Allowable Result Units:
 
Variable: Spot_Urine_Protein
Default Unit: mg/dL
Allowable Units: ng/mL  mcg/mL  mcg/dL  mg%  mg/dL  gm/dL  gm/L  g/dL  g/L  mg/mL  
 
Variable: Spot_Urine_Creat
LOINC: 35674-1 : mg/dL : 2161-8 : mg/dL : 14683-7 : mmol/L : 22726-4
Default Unit: mg/dL_UCr
Allowable Units: mg/dL_UCr  mg/mL_UCr  mmol/L_UCr  mcmol/L_UCr  
 
 


 
Online calculator: Urine anion gap
Source file: UrineAnionGap.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes E87.3 Alkalosis; E87.2 Acidosis; E87.8 Other disorders of electrolyte and fluid balance, not elsewhere classified
Associated ICD9-CM codes 276.9 Electrolyt/fluid dis nec; 276.2 Acidosis; 276.3 Alkalosis

 
Equation: Urine_AG = (Urine_Na + Urine_K) - Urine_Cl
LOINC of Result: 47561-6 : mEq/L
Default Result Unit: mEq/L
Allowable Result Units: mEq/L  
 
Variable: Urine_Na
LOINC: 2955-3 : mEq/L : 35678-2 : mEq/L : 2955-3 : mmol/L : 35678-2 : mmol/L
Default Unit: mEq/L_UNa
Allowable Units: mEq/L_UNa  mmol/L_UNa  
Maximum value: 200 mEq/L_UNa
 
Variable: Urine_K
LOINC: 2828-2 : mEq/L
Default Unit: mEq/L_UK
Allowable Units: mEq/L_UK  mmol/L_UK  
 
Variable: Urine_Cl
LOINC: 2078-4 : mEq/L : 35676-6 : mEq/L
Default Unit: mEq/L_UCl
Allowable Units: mEq/L_UCl  mmol/L_UCl  
Maximum value: 200 mEq/L_UCl
 
 


 
Online calculator: Urine osmolal gap (UOG) (SI units)
Source file: UOG_SI.eq
EBMcalc Version: 17.1

 
Equation: Urine_osmolal_gap = Measured_urine_osmolality - ((2 * (Urine_Na + Urine_K)) + Urine_urea_nitrogen + Urine_glucose)
Default Result Unit: mosm/kg
Allowable Result Units: mosm/kg  
 
Variable: Measured_urine_osmolality
Default Unit: mosm/kg
Allowable Units: mosm/kg  
Minimum value: 50 mosm/kg
Maximum value: 1200 mosm/kg
 
Variable: Urine_Na
LOINC: 2955-3 : mEq/L : 35678-2 : mEq/L : 2955-3 : mmol/L : 35678-2 : mmol/L
Default Unit: mmol/L_UNa
Allowable Units: mEq/L_UNa  mmol/L_UNa  
 
Variable: Urine_K
LOINC: 2828-2 : mEq/L
Default Unit: mmol/L_UK
Allowable Units: mEq/L_UK  mmol/L_UK  
 
Variable: Urine_urea_nitrogen
Default Unit: mmol/L_UBUN
Allowable Units: mg/dL_UBUN  mmol/L_UBUN  
Minimum value: 35.7 mmol/L_UBUN
Maximum value: 1428 mmol/L_UBUN
 
Variable: Urine_glucose
Default Unit: mmol/L_UGlu
Allowable Units: mg/dL_UGlu  mmol/L_UGlu  
 
 


 
Online calculator: Urine osmolal gap (UOG)
Source file: UOG.eq
EBMcalc Version: 17.1

 
Equation: Urine_osmolal_gap = Measured_urine_osmolality - ((2 * (Urine_Na + Urine_K)) + (Urine_urea_nitrogen / 2.8) + (Urine_glucose / 18))
Default Result Unit: mosm/kg
Allowable Result Units: mosm/kg  
 
Variable: Measured_urine_osmolality
Default Unit: mosm/kg
Allowable Units: mosm/kg  
Minimum value: 50 mosm/kg
Maximum value: 1200 mosm/kg
 
Variable: Urine_Na
LOINC: 2955-3 : mEq/L : 35678-2 : mEq/L : 2955-3 : mmol/L : 35678-2 : mmol/L
Default Unit: mEq/L_UNa
Allowable Units: mEq/L_UNa  mmol/L_UNa  
 
Variable: Urine_K
LOINC: 2828-2 : mEq/L
Default Unit: mEq/L_UK
Allowable Units: mEq/L_UK  mmol/L_UK  
 
Variable: Urine_urea_nitrogen
Default Unit: mg/dL_UBUN
Allowable Units: mg/dL_UBUN  mmol/L_UBUN  
Minimum value: 100 mg/dL_UBUN
Maximum value: 4000 mg/dL_UBUN
 
Variable: Urine_glucose
Default Unit: mg/dL_UGlu
Allowable Units: mg/dL_UGlu  mmol/L_UGlu  
 
 


 
  V

 
Online calculator: Vancomycin Dosing to Produce Desired Peak and Trough Levels
Source file: VancomycinDosingForLevels.cp
EBMcalc Version: 8.9

 
Equation: IBW = Math.abs(Height > 60) * (2.3 * (Height - 60)) + IBW_Sex
Default Result Unit: kg
Allowable Result Units: kg  lb  
 
Equation: CrCl = ((140 - Age) * (Weight_CrCl / (Serum_Creat * 72))) * CrCl_Sex
LOINC of Result: 33558-8 : mL/min : 2164-2 : mL/min
Default Result Unit: mL/min
Allowable Result Units: mL/hr  mL/min  L/hr  
 
Equation: Ke = (0.00083 * CrCl) + 0.0044
Default Result Unit: hr-1
Allowable Result Units:
 
Equation: Half_Life = 0.693 / Ke
Default Result Unit: hr
Allowable Result Units: min  hr  day  
 
Equation: VD = DW * Distribution_Factor
Default Result Unit: L
Allowable Result Units: mL  L  
 
Equation: Dosing_Interval = ((1 / Ke) * ln(Desired_Peak / Desired_Trough)) + Infusion_Time
Default Result Unit: hr
Allowable Result Units: min  hr  day  
 
Equation: Loading_Dose = (VD * Infusion_Time * Ke * Desired_Peak) / (1 - eTo(-Ke * Infusion_Time))
Default Result Unit: mg
Allowable Result Units: mcg  mg  gm  
 
Equation: Maintenance_Dose = (VD * Infusion_Time * Ke * Desired_Peak * (1 - eTo(-Ke * Dosing_Interval))) / (1 - eTo(-Ke * Infusion_Time))
Default Result Unit: mg
Allowable Result Units: mcg  mg  gm  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: in
Allowable Units: cm  m  in  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL
Allowable Units: mg%  mg/dL  gm/dL  gm/L  mg/mL  
 
Radio Button Variable: Distribution_Factor
Discrete variable option: 0.5 L/kg Variable value: 0.5
Discrete variable option: 0.6 L/kg Variable value: 0.6
Discrete variable option: *0.7 L/kg Variable value: 0.7
Discrete variable option: 0.75 L/kg Variable value: 0.75
Discrete variable option: 0.8 L/kg Variable value: 0.8
Discrete variable option: 0.9 L/kg Variable value: 0.9
 
Variable: Infusion_Time
Default Unit: hr
Allowable Units: min  hr  day  
Default value: 1 hr
 
Variable: Desired_Peak
Default Unit: mg/L
Allowable Units: mg/L  mcg/mL  
 
Variable: Desired_Trough
Default Unit: mg/L
Allowable Units: mg/L  mcg/mL  
 
 


 
Online calculator: Vancomycin Level Prediction from Maintenance Dosing
Source file: VancomycinLevelPrediction.cp
EBMcalc Version: 8.9

 
Equation: IBW = Math.abs(Height > 60) * (2.3 * (Height - 60)) + IBW_Sex
Default Result Unit: kg
Allowable Result Units: kg  lb  
 
Equation: CrCl = ((140 - Age) * (Weight_CrCl / (Serum_Creat * 72))) * CrCl_Sex
LOINC of Result: 33558-8 : mL/min : 2164-2 : mL/min
Default Result Unit: mL/min
Allowable Result Units: mL/hr  mL/min  L/hr  
 
Equation: Ke = (0.00083 * CrCl) + 0.0044
Default Result Unit: hr-1
Allowable Result Units:
 
Equation: Half_Life = 0.693 / Ke
Default Result Unit: hr
Allowable Result Units: min  hr  day  
 
Equation: VD = DW * Distribution_Factor
Default Result Unit: L
Allowable Result Units: mL  L  
 
Equation: Predicted_Peak = (Dose * (1 - eTo(-Ke * Infusion_Time))) / (Ke * VD * Infusion_Time * (1 - eTo(-Ke * Dose_Interval)))
Default Result Unit: mg/L
Allowable Result Units: mg/L  mcg/mL  
 
Equation: Predicted_Trough = Predicted_Peak * eTo(-Ke * (Dose_Interval - Infusion_Time))
Default Result Unit: mg/L
Allowable Result Units: mg/L  mcg/mL  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: in
Allowable Units: cm  m  in  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
 
Variable: Serum_Creat
LOINC: 2160-0 : mg/dL : 38483-4 : mg/dL : 14682-9 : mcmol/L : 22726-4 : mcmol/L : 59826-8 : mcmol/L
Default Unit: mg/dL
Allowable Units: mg%  mg/dL  gm/dL  gm/L  mg/mL  
 
Radio Button Variable: Distribution_Factor
Discrete variable option: 0.5 L/kg Variable value: 0.5
Discrete variable option: 0.6 L/kg Variable value: 0.6
Discrete variable option: *0.7 L/kg Variable value: 0.7
Discrete variable option: 0.75 L/kg Variable value: 0.75
Discrete variable option: 0.8 L/kg Variable value: 0.8
Discrete variable option: 0.9 L/kg Variable value: 0.9
 
Variable: Dose
Default Unit: mg
Allowable Units: mcg  mg  gm  
 
Variable: Dose_Interval
Default Unit: hr
Allowable Units: min  hr  day  
 
Variable: Infusion_Time
Default Unit: hr
Allowable Units: min  hr  day  
Default value: 1 hr
 
 


 
Online calculator: Vancomycin Steady State Dosage Adjustment
Source file: VancomycinSteadyState.cp
EBMcalc Version: 8.9

 
Equation: Ke = (ln(Measured_Peak) - ln(Measured_Trough))/(Trough_Hours_After_Dose - Peak_Hours_After_Dose)
Default Result Unit: hr-1
Allowable Result Units:
 
Equation: Half_Life = 0.693 / Ke
Default Result Unit: hr
Allowable Result Units: min  hr  day  
 
Equation: VD = Current_Dose * (1 - eTo(-Ke * Infusion_Time))/ (Ke * Infusion_Time * (Measured_Peak - (Measured_Trough * eTo(-Ke * Infusion_Time))))
Default Result Unit: L
Allowable Result Units: mL  L  
 
Equation: New_Dosing_Interval = ((1 / Ke) * ln(Desired_Peak / Desired_Trough)) + Infusion_Time
Default Result Unit: hr
Allowable Result Units: min  hr  day  
 
Equation: New_Dose = VD * Infusion_Time * Ke * Desired_Peak * (1 - eTo(-Ke * New_Dosing_Interval))/ (1 - eTo(-Ke * Infusion_Time))
Default Result Unit: mg
Allowable Result Units: mcg  mg  gm  
 
Variable: Current_Dose
Default Unit: mg
Allowable Units: mcg  mg  gm  
 
Variable: Infusion_Time
Default Unit: hr
Allowable Units: min  hr  day  
Default value: 1 hr
 
Variable: Measured_Peak
Default Unit: mg/L
Allowable Units: mg/L  mcg/mL  
 
Variable: Peak_Hours_After_Dose
Default Unit: hr
Allowable Units: min  hr  day  
 
Variable: Measured_Trough
Default Unit: mg/L
Allowable Units: mg/L  mcg/mL  
 
Variable: Trough_Hours_After_Dose
Default Unit: hr
Allowable Units: min  hr  day  
 
Variable: Desired_Peak
Default Unit: mg/L
Allowable Units: mg/L  mcg/mL  
 
Variable: Desired_Trough
Default Unit: mg/L
Allowable Units: mg/L  mcg/mL  
 
 


 
Online calculator: Ventilation Index
Source file: VentIndex.eq
EBMcalc Version: 8.8
Associated ICD10-CM codes J98.2 Interstitial emphysema; J43.9 Emphysema, unspecified; J98.3 Compensatory emphysema; J42 Unspecified chronic bronchitis; I27.9 Pulmonary heart disease, unspecified; I27.81 Cor pulmonale (chronic)
Associated ICD9-CM codes 518.82 Other pulmonary insuff; 416.9 Chr pulmon heart dis nos; 491.9 Chronic bronchitis nos; 518.2 Compensatory emphysema; 492.8 Emphysema nec; 518.1 Interstitial emphysema

 
Equation: Vent_Index = (RR * (PIP - PEEP) * CO2) / 1000
Default Result Unit: index
Allowable Result Units: none  index  #  number  logit  score  points  
 
Variable: RR
Default Unit: breaths/min
Allowable Units: breaths/min  
 
Variable: PIP
Default Unit: torr
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: PEEP
Default Unit: torr
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: CO2
LOINC: 2019-8 : mmHg : 34705-4 : mmHg
Default Unit: torr
Allowable Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
 


 
Online calculator: Very Low Density Lipoprotein (VLDL)
Source file: VeryLowDensityLipoprotein.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes E78.5 Hyperlipidemia, unspecified; E78.4 Other hyperlipidemia; E78.2 Mixed hyperlipidemia
Associated ICD9-CM codes 272.2 Mixed hyperlipidemia; 272.4 Hyperlipidemia nec/nos

 
Equation: VLDL = Triglycerides / 5
LOINC of Result: 13458-5 : mg/dL : 2091-7 : mg/dL
Default Result Unit: mg/dL_VLDL
Allowable Result Units: mg/dL_VLDL  
 
Variable: Triglycerides
LOINC: 2571-8 : mg/dL : 3043-7 : mg/dL : 14927-8 : mmol/L : 70218-3 : mmol/L
Default Unit: mg/dL_Trig
Allowable Units: mg/dL_Trig  mmol/L_Trig  
 
 


 
Online calculator: Vital Capacity
Source file: VitalCapacity.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes J98.2 Interstitial emphysema; J43.9 Emphysema, unspecified; J98.3 Compensatory emphysema; J42 Unspecified chronic bronchitis; I27.9 Pulmonary heart disease, unspecified; I27.81 Cor pulmonale (chronic)
Associated ICD9-CM codes 518.82 Other pulmonary insuff; 416.9 Chr pulmon heart dis nos; 491.9 Chronic bronchitis nos; 518.2 Compensatory emphysema; 492.8 Emphysema nec; 518.1 Interstitial emphysema

 
Equation: Vital_Cap = Insp_Reserve_Vol + Tidal_Vol + Exp_Reserve_Vol
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Variable: Insp_Reserve_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Tidal_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
Variable: Exp_Reserve_Vol
Default Unit: L
Allowable Units: fL  mL  L  
 
 


 
Online calculator: Volume of Distribution of Urea
Source file: VolumeDistUrea.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes N19 Unspecified kidney failure; N17.9 Acute kidney failure, unspecified; E87.8 Other disorders of electrolyte and fluid balance, not elsewhere classified
Associated ICD9-CM codes 276.9 Electrolyt/fluid dis nec; 584.9 Acute renal failure nos; 586 Renal failure nos

 
Equation: VDU_Females = (0.1069 * Height) + (0.2466 * Weight) - 2.097
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Equation: VDU_Males = 2.447 - (0.09516 * Age) + (0.1074 * Height) + (0.3362 * Weight)
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: yr
Allowable Units: mo  yr  
 
Variable: Height
LOINC: 8302-2 : cm
Default Unit: cm
Allowable Units: nm  micm  mm  cm  m  in  ft  yd  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
 


 
  W

 
Online calculator: Waist to Hip Ratio
Source file: WaistToHipRatio.eq
EBMcalc Version: 10.3
Associated ICD10-CM codes Z13.89 Encounter for screening for other disorder; E66.9 Obesity, unspecified; E66.01 Morbid (severe) obesity due to excess calories; E88.81 Metabolic syndrome; E88.9 Metabolic disorder, unspecified
Associated ICD9-CM codes 277.8 Metabolism disorder nec; 277.9 Metabolism disorder nos; 277.7 Dysmetabolic syndrome x; 278.01 Morbid obesity; 278.00 Obesity nos; V77.8 Screening for obesity

 
Equation: Waist_Hip_Ratio = Waist / Hip
Default Result Unit: ratio
Allowable Result Units: fraction  ratio  %  
 
Variable: Waist
Default Unit: in
Allowable Units: cm  m  in  
 
Variable: Hip
Default Unit: in
Allowable Units: cm  m  in  
 
 


 
Online calculator: Warfarin Weekly Dose Estimate in Non-rheumatic A-fib
Source file: WarfarinWeeklyDoseEstimate.cc
EBMcalc Version: 8.8
Associated ICD10-CM codes T45.514A Poisoning by anticoagulants, undetermined, initial encounter; Z79.01 Long term (current) use of anticoagulants
Associated ICD9-CM codes 964.2 Poisoning-anticoagulants; V58.61 Long-term anticoag use; E934.4 Adv eff anticoagulants

 
Equation: Index_INR = INR_Day_5
 
Variable: INR_Day_5
Minimum value: 1
Maximum value: 4.4
 
 


 
Online calculator: Water Deficit in Hypernatremia
Source file: WaterDeficit.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes E87.0 Hyperosmolality and hypernatremia; E86.0 Dehydration; E87.8 Other disorders of electrolyte and fluid balance, not elsewhere classified
Associated ICD9-CM codes 276.0 Hypernatremia; 276.51 Dehydration; 276.9 Electrolyt/fluid dis nec; 276.5 Hypovolemia

 
Equation: WDef = (Age_Sex_Factor * Normal_Weight) * (Serum_Na - Desired_Na) / Desired_Na
Default Result Unit: L
Allowable Result Units: fL  mL  L  
 
Radio Button Variable: Age_Sex_Factor
Discrete variable option: Male <65 years old Variable value: 0.6
Discrete variable option: Male ≥65 years old Variable value: 0.5
Discrete variable option: Female <18 years old Variable value: 0.6
Discrete variable option: Female 18-65 years old Variable value: 0.5
Discrete variable option: Female ≥65 years old Variable value: 0.45
 
Variable: Desired_Na
Default Unit: mEq/L_Na
Allowable Units: mEq/L_Na  mmol/L_Na  
Default value: 140 mEq/L_Na
 
Variable: Normal_Weight
Default Unit: kg
Allowable Units: mg  gm  kg  lb  
 
Variable: Serum_Na
LOINC: 2951-2 : mmol/L : 2947-0 : mEq/L : 32340-2 : mEq/L : 39791-9 : mEq/L
Default Unit: mEq/L_Na
Allowable Units: mEq/L_Na  mmol/L_Na  
 
 


 
Online calculator: Weight Based Divided Dose Calculator
Source file: WeightBasedDivDose.eq
EBMcalc Version: 8.9

 
Equation: Dose = Weight * Dosage
Default Result Unit: mg Daily
Allowable Result Units: mg Daily  mg BID  mg TID  mg QID  mg q4 hr  mg q2 hr  mg q1 hr  mcg Daily  mcg BID  mcg TID  mcg QID  mcg q4 hr  mcg q2 hr  mcg q1 hr  gm Daily  gm BID  gm TID  gm QID  gm q4 hr  gm q2 hr  gm q1 hr  
 
Equation: Liquid_Dose = Dose * Per_Volume / Med_Amount
Default Result Unit: mL Daily
Allowable Result Units: mL Daily  mL BID  mL TID  mL QID  mL q4 hr  mL q2 hr  mL q1 hr  L Daily  L BID  L TID  L QID  L q4 hr  L q2 hr  L q1 hr  
 
Variable: Dosage
Default Unit: mg/kg
Allowable Units: mg/kg  mcg/kg  gm/kg  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
 
Variable: Med_Amount
Default Unit: mg
Allowable Units: mcg  mg  gm  
 
Variable: Per_Volume
Default Unit: mL
Allowable Units: mL  L  
 
 


 
Online calculator: Weight Based Dosage Calculator
Source file: WeightBasedDose.eq
EBMcalc Version: 8.9

 
Equation: Dose = Weight * Dosage
Default Result Unit: mg
Allowable Result Units: mcg  mg  gm  
 
Equation: Liquid_Dose = Dose * Per_Volume / Med_Amount
Default Result Unit: mL
Allowable Result Units: mL  L  
 
Variable: Dosage
Default Unit: mg/kg
Allowable Units: mg/kg  mcg/kg  gm/kg  
 
Variable: Weight
LOINC: 29463-7 : kg : 3141-9 : kg : 8350-1 : kg : 8351-9 : kg
Default Unit: kg
Allowable Units: kg  lb  
 
Variable: Med_Amount
Default Unit: mg
Allowable Units: mcg  mg  gm  
 
Variable: Per_Volume
Default Unit: mL
Allowable Units: mL  L  
 
 


 
Online calculator: WHO Assessment of Malnutrition in Boys 0 to 2 Years Old
Source file: WHOInfantGrowthBoys.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z13.21 Encounter for screening for nutritional disorder; E46 Unspecified protein-calorie malnutrition; E22.0 Acromegaly and pituitary gigantism; E23.0 Hypopituitarism; E34.3 Short stature due to endocrine disorder
Associated ICD9-CM codes 259.4 Dwarfism nec; 253.3 Pituitary dwarfism; 253.0 Acromegaly and gigantism; 263.9 Protein-cal malnutr nos; V77.2 Screen for malnutrition

 
Equation: Z_Score_Length = (power((Length / M), L) - 1) / (L * S)
 
Equation: Z_Score_Weight_for_Length = (power((Weight / M), L) - 1) / (L * S)
 
Equation: Length_Percentile = ZtoPercentile(Z_Score_Length)
 
Equation: Weight_for_Length_Percentile = ZtoPercentile(Z_Score_Weight_for_Length)
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: mo
Allowable Units: mo  yr  
Maximum value: 24 mo
 
 


 
Online calculator: WHO Assessment of Malnutrition in Boys 2 to 5 years Old
Source file: WHOGrowthBoys.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z13.21 Encounter for screening for nutritional disorder; E46 Unspecified protein-calorie malnutrition; E22.0 Acromegaly and pituitary gigantism; E23.0 Hypopituitarism; E34.3 Short stature due to endocrine disorder
Associated ICD9-CM codes 259.4 Dwarfism nec; 253.3 Pituitary dwarfism; 253.0 Acromegaly and gigantism; 263.9 Protein-cal malnutr nos; V77.2 Screen for malnutrition

 
Equation: Z_Score_Height = (power((Height / M), L) - 1) / (L * S)
 
Equation: Z_Score_Weight_for_Height = (power((Weight / M), L) - 1) / (L * S)
 
Equation: Height_Percentile = ZtoPercentile(Z_Score_Height)
 
Equation: Weight_for_Height_Percentile = ZtoPercentile(Z_Score_Weight_for_Height)
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: mo
Allowable Units: mo  yr  
Minimum value: 24 mo
Maximum value: 60 mo
 
 


 
Online calculator: WHO Assessment of Malnutrition in Girls 0 to 2 Years Old
Source file: WHOInfantGrowthGirls.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z13.21 Encounter for screening for nutritional disorder; E46 Unspecified protein-calorie malnutrition; E22.0 Acromegaly and pituitary gigantism; E23.0 Hypopituitarism; E34.3 Short stature due to endocrine disorder
Associated ICD9-CM codes 259.4 Dwarfism nec; 253.3 Pituitary dwarfism; 253.0 Acromegaly and gigantism; 263.9 Protein-cal malnutr nos; V77.2 Screen for malnutrition

 
Equation: Z_Score_Length = (power((Length / M), L) - 1) / (L * S)
 
Equation: Z_Score_Weight_for_Length = (power((Weight / M), L) - 1) / (L * S)
 
Equation: Length_Percentile = ZtoPercentile(Z_Score_Length)
 
Equation: Weight_for_Length_Percentile = ZtoPercentile(Z_Score_Weight_for_Length)
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: mo
Allowable Units: mo  yr  
Maximum value: 24 mo
 
 


 
Online calculator: WHO Assessment of Malnutrition in Girls 2 to 5 years Old
Source file: WHOGrowthGirls.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z13.21 Encounter for screening for nutritional disorder; E46 Unspecified protein-calorie malnutrition; E22.0 Acromegaly and pituitary gigantism; E23.0 Hypopituitarism; E34.3 Short stature due to endocrine disorder
Associated ICD9-CM codes 259.4 Dwarfism nec; 253.3 Pituitary dwarfism; 253.0 Acromegaly and gigantism; 263.9 Protein-cal malnutr nos; V77.2 Screen for malnutrition

 
Equation: Z_Score_Height = (power((Height / M), L) - 1) / (L * S)
 
Equation: Z_Score_Weight_for_Height = (power((Weight / M), L) - 1) / (L * S)
 
Equation: Height_Percentile = ZtoPercentile(Z_Score_Height)
 
Equation: Weight_for_Height_Percentile = ZtoPercentile(Z_Score_Weight_for_Height)
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: mo
Allowable Units: mo  yr  
Minimum value: 24 mo
Maximum value: 60 mo
 
 


 
Online calculator: WHO Infant Head Circumference for age Percentiles (<24 months)
Source file: WHOInfantHeadCircForAge.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z13.21 Encounter for screening for nutritional disorder; E46 Unspecified protein-calorie malnutrition; E22.0 Acromegaly and pituitary gigantism; E23.0 Hypopituitarism; E34.3 Short stature due to endocrine disorder
Associated ICD9-CM codes 259.4 Dwarfism nec; 253.3 Pituitary dwarfism; 253.0 Acromegaly and gigantism; 263.9 Protein-cal malnutr nos; V77.2 Screen for malnutrition

 
Equation: Z_Score = (power((Head_circumference / M), L) - 1) / (L * S)
 
Equation: Percentile = ZtoPercentile(Z_Score)
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: mo
Allowable Units: mo  yr  
Maximum value: 23.99 mo
 
 


 
Online calculator: WHO Infant Length for Age Percentiles (<24 months)
Source file: WHOInfantLengthForAge.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z13.21 Encounter for screening for nutritional disorder; E46 Unspecified protein-calorie malnutrition; E22.0 Acromegaly and pituitary gigantism; E23.0 Hypopituitarism; E34.3 Short stature due to endocrine disorder
Associated ICD9-CM codes 259.4 Dwarfism nec; 253.3 Pituitary dwarfism; 253.0 Acromegaly and gigantism; 263.9 Protein-cal malnutr nos; V77.2 Screen for malnutrition

 
Equation: Z_Score = (power((Length / M), L) - 1) / (L * S)
 
Equation: Percentile = ZtoPercentile(Z_Score)
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: mo
Allowable Units: mo  yr  
Maximum value: 23.99 mo
 
 


 
Online calculator: WHO Infant Weight for Age Percentiles (<24 months)
Source file: WHOInfantWeightForAge.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z13.21 Encounter for screening for nutritional disorder; E46 Unspecified protein-calorie malnutrition; E22.0 Acromegaly and pituitary gigantism; E23.0 Hypopituitarism; E34.3 Short stature due to endocrine disorder
Associated ICD9-CM codes 259.4 Dwarfism nec; 253.3 Pituitary dwarfism; 253.0 Acromegaly and gigantism; 263.9 Protein-cal malnutr nos; V77.2 Screen for malnutrition

 
Equation: Z_Score = (power((Weight / M), L) - 1) / (L * S)
 
Equation: Percentile = ZtoPercentile(Z_Score)
 
Variable: Age
LOINC: 21612-7 : Years old : 21612-7 : yr : 21612-7 : years : 30525-0 : Years old : 30525-0 : yr : 30525-0 : years
Default Unit: mo
Allowable Units: mo  yr  
Maximum value: 23.99 mo
 
 


 
Online calculator: WHO Infant Weight for Length Percentiles (<24 months)
Source file: WHOInfantWeightForLength.eq
EBMcalc Version: 8.9
Associated ICD10-CM codes Z13.21 Encounter for screening for nutritional disorder; E46 Unspecified protein-calorie malnutrition; E22.0 Acromegaly and pituitary gigantism; E23.0 Hypopituitarism; E34.3 Short stature due to endocrine disorder
Associated ICD9-CM codes 259.4 Dwarfism nec; 253.3 Pituitary dwarfism; 253.0 Acromegaly and gigantism; 263.9 Protein-cal malnutr nos; V77.2 Screen for malnutrition

 
Equation: Z_Score = (power((Weight / M), L) - 1) / (L * S)
 
Equation: Percentile = ZtoPercentile(Z_Score)
 
 


 
Online calculator: Winters' Formula for Expected PCO2
Source file: WinterFormula.eq
EBMcalc Version: 8.7
Associated ICD10-CM codes E87.3 Alkalosis; E87.2 Acidosis; E87.8 Other disorders of electrolyte and fluid balance, not elsewhere classified
Associated ICD9-CM codes 276.9 Electrolyt/fluid dis nec; 276.2 Acidosis; 276.3 Alkalosis

 
Equation: PCO2 = HCO3 * 1.5 + 8
Default Result Unit: mmHg
Allowable Result Units: Pascal  kPa  mmHg  cmHg  torr  inHg  inH2O  ftH2O  cmH2O  gm/sqcm  bar  mbar  atm  psi  
 
Variable: HCO3
LOINC: 1959-6 : mEq/L : 1960-4 : mEq/L : 14627-4 : mEq/L : 1961-2 : mEq/L : 22735-5 : mEq/L : 1963-8 : mEq/L
Default Unit: mEq/L_HCO3
Allowable Units: mEq/L_HCO3  mmol/L_HCO3  
 
 


 
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All information contained in and produced by the EBMcalc system is provided for educational purposes only. This information should not be used for the diagnosis or treatment of any health problem or disease. THIS INFORMATION IS NOT INTENDED TO REPLACE CLINICAL JUDGMENT OR GUIDE INDIVIDUAL PATIENT CARE IN ANY MANNER. Click here for full notice and disclaimer.
 
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