Cerebrovascular Disease USMLE Step 1 Practice Question
A 64-year-old hypertensive man on aspirin presents with sudden loss of vision on the left side in both eyes while reading. Vital signs show BP 168/94 mmHg, HR 88/min, RR 16/min, temp 37°C, SpO2 98%. He retains ability to read words placed directly ahead. Motor examination is normal. MRI diffusion-weighted imaging reveals acute infarction in the left occipital lobe. Which artery is most likely occluded?
Answer choices
- APosterior cerebral arteryCorrect answer
- BAnterior spinal artery
- CBasilar artery
- DMiddle cerebral artery
- EAnterior cerebral artery
- FPosterior inferior cerebellar artery
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