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Pulmonology · Emergency Medicine

CRB-65 Score calculator

Enter the published formula inputs below to calculate and interpret this score.

Clinical inputs

Result

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Formula inputs

  • Confusion (acute)
  • Respiratory Rate ≥ 30
  • Low Blood Pressure
  • Age ≥ 65

Primary source

British Thoracic Society CAP guideline (CRB-65). Thorax. DOI: 10.1136/thx.2008.110072. PMID: 19060031. Scope: CRB-65 = confusion, RR≥30, low BP (SBP<90 or DBP≤60), age≥65 (1 point each); blood urea omitted versus CURB-65. (2009)

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