PSI / PORT Score calculator
Result
60 (Class II)
30-day mortality ~0.6%
Class I–II: outpatient. Class III: observation. Class IV–V: hospital.
How to use it
- 1
Age is baseline score. Female: subtract 10. Nursing home: add 10.
- 2
Comorbidities. Neoplasm +30; liver +20; CHF/CVD/renal +10 each.
- 3
Clinical/labs. pH < 7.35 and neoplasm highest-weighted (+30). All 20 variables assessed.
When to use it
- CAP severity complementing CURB-65
- PSI more sensitive at low-risk end; CURB-65 simpler at high-risk end.
- Class I–II
- Supports outpatient treatment.
- North American guidelines
- IDSA/ATS recommend PSI for CAP risk stratification.
A reference for clinicians and students, not medical advice. A score supports a decision; it does not make one. Check every result against the patient in front of you and your local protocol.
At a glance
- Specialty
- Pulmonology
- Inputs
- 20
- Type
- Formula
















