USMLE Step 3 Quiz
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CARDIOVASCULAR
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A 72-year-old man with a 40-pack-year smoking history and type 2 diabetes presents with a 6-month history of cramping pain in his right calf that occurs after walking two blocks and is relieved by 5 minutes of rest. His ankle-brachial index is 0.65 on the right and 0.95 on the left. He is currently taking metformin and low-dose aspirin. In addition to counseling on smoking cessation and recommending a supervised exercise program, which of the following is the most appropriate addition to his medical regimen?
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