skip to main content

Subarachnoid haemorrhage — RACP Written MCQ

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

HardNeurologySubarachnoid haemorrhageRACP Written

A 78-year-old man develops abrupt severe occipital headache while gardening and vomits twice. CT brain performed 8 hours later is normal. Neck stiffness persists and blood pressure is 168/92 mmHg. What is the most appropriate investigation?

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

Reveal the answer and explanation

Correct answer: C — Lumbar puncture for xanthochromia

Thunderclap headache with persistent meningism remains concerning for subarachnoid haemorrhage despite normal early CT; lumbar puncture is appropriate when imaging is negative and suspicion persists.

Reference: Australian stroke and neurology guideline principles; Therapeutic Guidelines