CORB Score (Severe Pneumonia)
CORB score (Buising 2007): Confusion, Oxygen saturation ≤ 90%, Respiratory rate ≥ 30, and Blood pressure (SBP < 90 or DBP ≤ 60) give a 0–4 severe-CAP score (≥ 2 severe).
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Acute confusion
- Yes
- Oxygen saturation ≤ 90%
- Yes
- Respiratory rate ≥ 30
- No
- Systolic BP < 90 or diastolic ≤ 60
- No
Result: CORB score 2 — severe CAP flagged (>= 2).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- 0-1
- Lower severity.
- >= 2
- Severe CAP flagged. Confusion, SpO2 <= 90%, RR >= 30, low BP. A severity score, not an admission order.
What you enter
- Acute confusion (+1)
- Oxygen saturation ≤ 90% (+1)
- Respiratory rate ≥ 30 (+1)
- Systolic BP < 90 or diastolic ≤ 60 (+1)
How this is calculated
Buising KL, Thursky KA, Black JF, et al. Identifying severe community-acquired pneumonia in the emergency department: a simple clinical prediction tool. Emerg Med Australas. 2007;19(5):418-426. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.