Calcium and Parathyroid USMLE Step 1 Practice Question
A 42-year-old woman with parathyroid carcinoma presents with severe hypercalcemia. Vital signs show BP 158/92 mmHg, HR 108/min, RR 20/min, temp 37.2°C. Labs reveal serum calcium 14.2 mg/dL, phosphate 2.0 mg/dL, PTH 650 pg/mL, and creatinine 3.2 mg/dL consistent with acute kidney injury. Urinalysis shows no glycosuria. She develops nausea and confusion. Which medication should be AVOIDED in her acute management?
Answer choices
- ABisphosphonates
- BIntravenous saline and loop diuretics
- CThiazide diureticsCorrect answer
- DCinacalcet
- ECalcitonin
- FVitamin D supplements
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