Endocrine Pharmacology USMLE Step 1 Practice Question
A 55-year-old man on hemodialysis presents with persistent hyperparathyroidism. Vital signs show BP 148/92 mmHg, HR 88 bpm, RR 16, temp 37°C. Labs reveal PTH 487 pg/mL (normal <65), phosphate 6.2 mg/dL, and corrected calcium 9.8 mg/dL. Imaging shows no parathyroid adenoma. He denies bone pain. His nephrologist prescribes a medication that sensitizes calcium-sensing receptors on parathyroid cells to suppress PTH secretion. Which drug was most likely prescribed?
Answer choices
- ATeriparatide
- BCalcitonin
- CCinacalcetCorrect answer
- DAlendronate
- ESevelamer
- FEtelcalcetide
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