Vascular Disease USMLE Step 1 Practice Question
A 54-year-old man with type 2 diabetes and 40 pack-year smoking history presents with rest pain in his left foot and a non-healing heel ulcer for 6 weeks. Vital signs: BP 148/92, HR 92, RR 18, temp 37.2°C, SpO2 98%. Examination reveals cool left foot with absent dorsalis pedis pulse. Ankle-brachial index is 0.4 on the left. Doppler ultrasound confirms severe stenosis of the left superficial femoral artery. Which stage of peripheral artery disease best describes his presentation?
Answer choices
- AIntermittent claudication
- BAcute limb ischemia
- CMild claudication
- DCritical limb ischemiaCorrect answer
- EAsymptomatic PAD
- FAcute arterial thrombosis with acute limb ischemia
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