The MedCalc 3000 module Community-Acquired Pneumonia Severity Index (PSI) for Adults is available in MedCalc 3000 Complete Edition.

This calculator evaluates the following Clinical Criteria:

• Sex
• Age (1 point for each year)
• Nursing home resident
• Neoplastic disease
• Liver disease
• Congestive heart failure
• Cerebrovascular disease
• Renal disease
• Altered mental status
• Respiratory rate >= 30/minute
• Systolic blood pressure < 90 mmHg
• Temperature < 35 degrees C or >= 40 degrees C
• Pulse >= 125/minute
• Arterial pH < 7.35
• Blood urea nitrogen >= 30 mg/dL (11 mmol/L)
• Sodium < 130 mEq/L
• Glucose >= 250 mg/dL (14 mmol/L)
• Hematocrit < 30 percent
• Partial pressure of arterial oxygen < 60 mmHg or oxygen saturation < 90%
• Pleural effusion