🫁 SCAP Score (Severe CAP)
UseWhen to use: ED/ward CAP severity and ICU consideration.
StrataSevere → higher-acuity monitoring/ICU discussion per ATS/IDSA local rules.
LimitsWhen not to use: instead of bedside shock assessment. · Pitfall: missing occult hypercapnic failure. · Cross-check SMART-COP/CURB-65.
SourceEspaña PP et al. SCAP score
This-shift next steps
After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.
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Methodology · worked example, guidelines & full notes
Major or ≥10.
When to use
When to use: ED/ward CAP severity and ICU consideration.
How it works
Major: pH<7.30 (+13) or SBP<90 (+11); minors RR/O₂/BUN/AMS/age≥80/multilobar; severe if major or sum≥10.
Key points
- Major or ≥10.
- Severe CAP cue.
- Next: ATS/IDSA severe CAP.
References
- España PP et al. SCAP score
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Arterial pH <7.30 (major) | No (0) |
|---|---|
| SBP <90 mmHg (major) | No (0) |
| RR >30/min | No (0) |
| PaO₂ <54 mmHg or PaO₂/FiO₂ <250 | No (0) |
| BUN >30 mg/dL (urea >11 mmol/L) | No (0) |
| Altered mental status | No (0) |
| Age ≥80 years | No (0) |
| Multilobar or bilateral CXR infiltrate | No (0) |
→SCAP0points
- Classification：Not severe by SCAP
| Arterial pH <7.30 (major) | Yes (+13) |
|---|---|
| SBP <90 mmHg (major) | Yes (+11) |
| RR >30/min | Yes (+9) |
| PaO₂ <54 mmHg or PaO₂/FiO₂ <250 | Yes (+6) |
| BUN >30 mg/dL (urea >11 mmol/L) | Yes (+5) |
| Altered mental status | Yes (+5) |
| Age ≥80 years | Yes (+5) |
| Multilobar or bilateral CXR infiltrate | Yes (+5) |
→SCAP59points
- Classification：Severe — major criterion present
Verification & sources · governance
FAQ
Frequently asked questions
- Does SCAP Score (Severe CAP) upload patient data? Where is it calculated?
- Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.
- How is SCAP Score (Severe CAP) calculated in practice? Can you show a worked example?
- Inputs: Arterial pH <7.30 (major) No (0), SBP <90 mmHg (major) No (0), RR >30/min No (0), PaO₂ <54 mmHg or PaO₂/FiO₂ <250 No (0), BUN >30 mg/dL (urea >11 mmol/L) No (0), Altered mental status No (0), Age ≥80 years No (0), Multilobar or bilateral CXR infiltrate No (0) → Result: SCAP 0 points（Classification: Not severe by SCAP） Inputs: Arterial pH <7.30 (major) Yes (+13), SBP <90 mmHg (major) Yes (+11), RR >30/min Yes (+9), PaO₂ <54 mmHg or PaO₂/FiO₂ <250 Yes (+6), BUN >30 mg/dL (urea >11 mmol/L) Yes (+5), Altered mental status Yes (+5), Age ≥80 years Yes (+5), Multilobar or bilateral CXR infiltrate Yes (+5) → Result: SCAP 59 points（Classification: Severe — major criterion present）