Infectious DiseaseScore

CRB-65 Score for Community-Acquired Pneumonia Severity

Simplified clinical severity scoring tool for community-acquired pneumonia (CAP) in primary care and outpatient settings. A version of CURB-65 that omits urea (BUN) measurement — enabling assessment without blood tests. Stratifies into low, moderate, and high risk to guide disposition (home vs. hospital vs. ICU).

Parameters

C — Confusion (New-Onset Mental Confusion)

No new confusion+0New-onset confusion (+1 pt)+1

R — Respiratory Rate ≥ 30 Breaths/Minute

Respiratory rate < 30/min+0Respiratory rate ≥ 30/min (+1 pt)+1

B — Low Blood Pressure (SBP < 90 mmHg or DBP ≤ 60 mmHg)

SBP ≥ 90 AND DBP > 60 mmHg+0SBP < 90 OR DBP ≤ 60 mmHg (+1 pt)+1

65 — Age ≥ 65 Years

Age < 65 years+0Age ≥ 65 years (+1 pt)+1

Awaiting input

Fill in the parameters to see your result