Patient Characteristic | Points Assigned* | |
---|---|---|
Demographic Factors (Age) | Males | Age (in years) |
Females | Age (in years) -10 | |
Nursing home residents | +10 | |
Comorbid Illnesses | Neoplastic disease | +30 |
Liver disease | +20 | |
Congestive heart failure | +10 | |
Cerebrovascular disease | +10 | |
Renal disease | +10 | |
Physical Examination Findings | Altered mental status | +20 |
Respiratory rate 30 breaths per minute or more | +20 | |
Systolic blood pressure < 90 mm Hg | +20 | |
Temperature < 35°C or 40°C or more | +15 | |
Pulse 125 beats per minute or more | +10 | |
Laboratory findings | pH < 7.35 | +30 |
BUN > 10.7 mmol/L | +20 | |
Sodium less than 130 /L | +20 | |
Glucose > 13.9 mmol/L | +10 | |
Hematocrit < 30 percent | +10 | |
Partial pressure of arterial oxygen < 60 mm Hg | +10¹ | |
Pleural effusion | +10 |
*A risk score (total point score) for a given patient is obtained by summing the patient age in years (age minus 10 for females) and the points for each applicable patient characteristic.