Endocrine Pharmacology USMLE Step 1 Practice Question
A 67-year-old man with type 2 diabetes mellitus on metformin presents with acute onset facial flushing, nausea, and palpitations 15 minutes after consuming wine at dinner. Vital signs show BP 138/82 mmHg, HR 105/min, RR 16/min, temperature 37.2°C. Recent labs reveal fasting glucose 128 mg/dL. He recently initiated an older sulfonylurea agent that stimulates pancreatic beta cell insulin secretion. No chest pain or dyspnea noted. Which drug most likely caused his symptoms?
Answer choices
- ARepaglinide
- BAcarbose
- CMetformin
- DChlorpropamideCorrect answer
- EGlyburide
- FPioglitazone
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