skip to main content

Posterior circulation stroke — RCPSC EM MCQ

Instant feedback + full explanation. One question, done properly.

ModerateNeurological emergenciesPosterior circulation strokeRCPSC EM

A 62-year-old woman develops abrupt vertigo, vomiting and inability to stand. She has direction-changing nystagmus and a skew deviation. CT head is normal. Finger-nose testing is impaired on the right. What is the most likely diagnosis?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: A — Posterior circulation stroke

Central HINTS findings, truncal ataxia and limb dysmetria indicate posterior circulation stroke despite a normal early CT. Stroke activation and vascular imaging are required.

Reference: Canadian Stroke Best Practices; CAEP acute stroke position statement