MDCalc | Pulmonary Embolism Severity Index (PESI)

Patient Age	years old+1 point per year
Male Patient?	Yes +10
History of Cancer?	Yes +30
History of heart failure?	Yes +10
History of chronic lung disease?	Yes +10
Heart Rate ≥ 110?	Yes +20
Systolic Blood Pressure < 100 mmHg?	Yes +30
Respiratory Rate ≥ 30/min?	Yes +20
Temperature < 36° C / 96.8° F?	Yes +20
Altered Mental Status? Disorientation, lethargy, stupor, or coma	Yes +60
O₂ Saturation < 90% on Room Air?	Yes +20
PESI Score:

Pulmonary Embolism Severity Index (PESI)