SCAP Score (Severe Community-Acquired Pneumonia)
SCAP / España score (España 2006): major criteria (pH < 7.30, SBP < 90) and minor criteria identify severe community-acquired pneumonia (≥ 10 high risk).
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Arterial pH < 7.30
- No
- Systolic BP < 90 mmHg
- No
- Respiratory rate > 30
- Yes
- PaO₂ < 54 or PaO₂/FiO₂ < 250
- No
- BUN > 30 mg/dL
- Yes
- Altered mental status
- No
- Age ≥ 80
- No
- Multilobar / bilateral infiltrate
- No
Result: SCAP score 14 — high risk of severe CAP (>= 10).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- 0-9
- Lower risk of severe community-acquired pneumonia.
- >= 10
- High risk (any major criterion or >= 2 minor). Major pH < 7.30 / SBP < 90; minor RR/hypoxemia/BUN/AMS/age/multilobar. A severity score, not an admission order.
What you enter
- Arterial pH < 7.30 (+13)
- Systolic BP < 90 mmHg (+11)
- Respiratory rate > 30 (+9)
- PaO₂ < 54 or PaO₂/FiO₂ < 250 (+6)
- BUN > 30 mg/dL (+5)
- Altered mental status (+5)
- Age ≥ 80 (+5)
- Multilobar / bilateral infiltrate (+5)
How this is calculated
España PP, Capelastegui A, Gorordo I, et al. Development and validation of a clinical prediction rule for severe community-acquired pneumonia. Am J Respir Crit Care Med. 2006;174(11):1249-1256. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.