CURB-65 Calculator for Pneumonia Severity

What CURB-65 does well, and where it fails quietly

Derived from the British Thoracic Society cohorts, CURB-65 buys a defensible disposition framework for the price of five variables: 0–1 usually home, 2 the judgment zone, 3–5 admit with ICU consideration at the top. Its blind spots are worth naming: it contains no oxygenation term, so a hypoxemic patient can score 1 and still need admission; it undercalls severity in young patients, who compensate until they do not; and, like every severity score, it measures the patient at one moment — reassess after fluids, or after two hours, and the number can move.

Pneumonia after stroke — the complication that sets recovery back the furthest

Aspiration pneumonia is the leading medical complication of acute stroke, affecting on the order of one in ten admissions, concentrated in patients with dysphagia, reduced consciousness, and brainstem or large-hemispheric lesions — and it independently predicts mortality and worse functional outcome. The prevention chain matters more than any severity score: nil-by-mouth until a swallow screen, early formal speech-language evaluation for anyone who fails, oral care, and head-of-bed positioning. When post-stroke pneumonia does declare itself, two CURB-65 caveats apply: the confusion item is confounded by the stroke (score it against the post-stroke baseline), and these are hospital-acquired, often aspiration-flora infections — CURB-65's mortality bands were built for community-acquired pneumonia, so use it as a structured severity check, not a validated prediction, and choose antibiotics for the actual setting.