ROSIER (Recognition of Stroke in the Emergency Room)
ROSIER (Recognition of Stroke in the Emergency Room) - a deterministic tool in Sophie Well's Clinical Scoring & Risk group.
Open the ROSIER (Recognition of Stroke in the Emergency Room) → Runs in your browser. No signup, no tracking.
What this is
ROSIER (Recognition of Stroke in the Emergency Room) is one of 230 deterministic tools in Sophie Well's Clinical Scoring & Risk group. ROSIER (Recognition of Stroke in the Emergency Room) - a deterministic tool in Sophie Well's Clinical Scoring & Risk group.
When to use it
Use this tool when you need a quick, citable reference. Every calculation runs entirely in your browser - no inputs leave your device, no account is required, no AI is involved. The site enforces a strict Content Security Policy and ships no analytics or third-party CDN.
References
Nor AM, Davis J, Sen B, Shipsey D, Louw SJ, Dyker AG, Davis M, Ford GA. The Recognition of Stroke in the Emergency Room (ROSIER) scale: development and validation of a stroke recognition instrument. Lancet Neurol. 2005;4(11):727-734.
Worked example: ROSIER 0: low probability of stroke on the ROSIER threshold (score <= 0 per Nor 2005). Investigate stroke mimics (seizure, syncope) but stroke is not fully excluded; use clinical judgment.
Sophie Well is a reference and educational tool. Not medical, legal, or financial advice. Does not replace clinician judgment, professional billing review, or legal counsel.