Heart Failure USMLE Step 1 Practice Question
A 34-year-old male with a 20 pack-year smoking history presents with severe pain in his fingers and toes. Vital signs show BP 128/82 mmHg, HR 92 bpm, RR 16, temp 37.2°C, SpO2 98% on room air. Examination reveals distal digital ulcerations, tender superficial nodules along a forearm vein, and normal cardiac auscultation. Laboratory studies show elevated inflammatory markers with CRP 8.2 mg/dL. Which of the following is the most likely diagnosis?
Answer choices
- AThromboangiitis obliteransCorrect answer
- BAortic dissection
- CAbdominal aortic aneurysm
- DSyphilitic thoracic aortic aneurysm
- EPeripheral arterial disease
- FTakayasu arteritis
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