CNS Pharmacology USMLE Step 1 Practice Question
A 58-year-old man presents 90 minutes after sudden onset of right arm weakness and expressive aphasia. Vital signs: BP 158/92, HR 98, RR 16, temp 37.2°C, SpO2 98% on room air. Head CT shows no hemorrhage; MRI demonstrates acute left middle cerebral artery territory infarction. He denies recent anticoagulant use. He receives a recombinant drug that converts plasminogen to plasmin to promote fibrin clot breakdown. Which medication was most likely given?
Answer choices
- AAspirin
- BClopidogrel
- CWarfarin
- DAlteplaseCorrect answer
- EHeparin
- FUrokinase
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