Fine 1997 Pneumonia Severity Index (PSI/PORT): Class I if age ≤50 and no neoplastic, liver, CHF, cerebrovascular, or renal disease, no AMS, HR <125, RR <30, SBP >=90, and temperature 35 to <40 C. Otherwise Table 2 points (age, or age-10 if female, plus comorbidity, vital-sign, and laboratory weights) map to classes II-V. Always returns the Table 2 total. Not a medical device and not a site-of-care decision.

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