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    • Lung and Respiratory - Community-Acquired Pneumonia Severity Index (PSI) for Adults

    Community-Acquired Pneumonia Severity Index (PSI) for Adults

    Select Criteria:
    Sex
    M (0 points)
    F (-10 points)
    Demographic factors
    Age (1 point for each year)
    Nursing home resident (10 points)
    Comorbid illnesses
    Neoplastic disease (30 points)
    Liver disease (20 points)
    Congestive heart failure (10 points)
    Cerebrovascular disease (10 points)
    Renal disease (10 points)
    Physical examination findings
    Altered mental status (20 points)
    Respiratory rate >= 30/minute (20 points)
    Systolic blood pressure < 90 mmHg (20 points)
    Temperature < 35 degrees C or >= 40 degrees C (15 points)
    Pulse >= 125/minute (10 points)
    Laboratory and radiographic findings
    Arterial pH < 7.35 (30 points)
    Blood urea nitrogen >= 30 mg/dL (11 mmol/L) (20 points)
    Sodium < 130 mEq/L (20 points)
    Glucose >= 250 mg/dL (14 mmol/L) (10 points)
    Hematocrit < 30 percent (10 points)
    Partial pressure of arterial oxygen < 60 mmHg or oxygen saturation < 90% (10 points)
    Pleural effusion (10 points)
    Results: Total Criteria Point Count:
    Pneumonia Score Interpretation
    0-50 Points:Class I 0.1% Mortality
    51-70 Points:Class II 0.6% Mortality
    71-90 Points:Class III 0.9% Mortality
    91-130 Points:Class IV 9.3% Mortality
    131-395 Points:Class V 27.0% Mortality
    1. Fine MJ, Auble TE, Yealy DM, et. al. A prediction rule to identify low-risk patients with community-acquired pneumonia. N Engl J Med. 1997; 336:243-250.
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