Clinical use
Use this calculator for pneumonia severity and admission decision in thepulmonary workflow. It is decision support and should be interpreted with the patient context, local protocols, and clinician judgment.
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Pulmonary
PSI/PORT Score (Pneumonia Severity Index) Calculator
Pneumonia severity and admission decision
Calculate PSI
Interpretation
Class I-III: outpatient or brief admission. Class IV-V: inpatient. Most validated pneumonia severity tool. Over 20 variables but very accurate.
Required inputs
- Age
- Sex
- Nursing Home
- Neoplasm
- Liver Disease
- CHF
- Cerebrovascular Disease
- Renal Disease
- Altered Mental Status
- Respiratory Rate
- Systolic BP
- Temperature
- Heart Rate
- Ph
- BUN
- Sodium
- Glucose
- Hematocrit
- Pao 2
- Pleural Effusion
Evidence and limitations
This page cites 1 published reference. Confirm units and inclusion criteria before applying the output; calculators do not replace assessment, escalation, or local policy.
References
- Fine MJ et al. N Engl J Med 1997;336:243-250
Frequently asked questions
What is the PSI/PORT Score (Pneumonia Severity Index)?
PSI/PORT Score (Pneumonia Severity Index) is a clinical calculator used for Pneumonia severity and admission decision.
How do I interpret the PSI/PORT Score (Pneumonia Severity Index)?
Class I-III: outpatient or brief admission. Class IV-V: inpatient. Most validated pneumonia severity tool. Over 20 variables but very accurate.
What inputs are required for the PSI/PORT Score (Pneumonia Severity Index)?
Required inputs include Age, Sex, Nursing Home, Neoplasm, Liver Disease, CHF, Cerebrovascular Disease, Renal Disease, Altered Mental Status, Respiratory Rate, Systolic BP, Temperature, Heart Rate, Ph, BUN, Sodium, Glucose, Hematocrit, Pao 2, Pleural Effusion.
What is the evidence behind the PSI/PORT Score (Pneumonia Severity Index)?
The PSI/PORT Score (Pneumonia Severity Index) page cites Fine MJ et al. N Engl J Med 1997;336:243-250.
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Next steps
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