Table 1. Pneumonia PORT Severity Index (PSI) Patient Characteristic*
Demographic factors Age
Male (no. yrs) Female (no. yrs − 10) Nursing home resident (consider as HCAP)
Comorbid illnesses Neoplastic disease Liver disease
Congestive heart failure Cerebrovascular disease
Renal disease
Physical examination findings Altered mental status
Respiratory rate ≥ 30 breaths/min Systolic blood pressure < 90 mm Hg Temperature < 35°C or > 40°C Pulse > 125 beats/min
Laboratory and/or radiographic findings Arterial pH < 7.35
Blood urea nitrogen ≥ 30 mg/dL Sodium < 130 mmol/L Glucose > 250 mg/dL Hematocrit < 30%
Hypoxemia by O2 saturation:
< 90% by pulse oximetry < 60 mm Hg by arterial blood gas Pleural effusion on baseline radiograph
Total Point Score
PSI Risk Class I
II
III IV V
(points for each applicable patient characteristic) Characteristic Points
Age < 50 yr + no comorbid conditions, normal range vital signs, normal mental status ≤ 70
71 - 90
91 - 130 > 130
Recommended Site of Care Outpatient
Outpatient
Outpatient/brief inpatient Inpatient Inpatient
*Social factors (eg, outpatient support mechanisms, probability of adherence to treatment) not included.
+10 +10
— —
+10
+30 +20 +10
+10 +10
+20 +20 +20 +15 +10
+30 +20 +20 +10 +10
Points Assigned
