CRB-65 Score for Pneumonia Severity
One point each for confusion, urea, respiratory rate, and low blood pressure (no age criterion).
Calculator
How it works
CRB-65 is CURB-65 without the age criterion; each of four factors scores 1 point (0–4 total).
Limits
Does not replace oxygenation assessment, comorbidity review, or local pneumonia pathways.
Educational tool only—not for diagnosis or treatment decisions.