A 72-year-old has sudden left-sided weakness and slurred speech that began 90 minutes ago. What must be done before thrombolysis?
Answer and explanation
Correct answer: C. A non-contrast CT of the head to exclude hemorrhage
- Step 1: The time window for ischemic stroke treatment is short. Step 2. Thrombolysis is harmful in hemorrhage, so a rapid non-contrast CT separates the two causes. Answer: non-contrast CT of the head. Why not the others: a lumbar puncture and next-day MRI delay treatment, and aspirin alone wastes the window.
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