Calcium and Parathyroid USMLE Step 1 Practice Question
A 38-year-old man with MEN 2A presents for preoperative evaluation before scheduled thyroidectomy for medullary thyroid carcinoma. Vital signs show BP 158/94 mmHg, HR 102 bpm, RR 16, temp 37°C. Recent imaging confirms thyroid nodule. Serum calcium is 10.2 mg/dL (normal). He denies headaches or diaphoresis. Which of the following endocrine abnormality should be excluded before surgery to reduce intraoperative hypertensive crisis risk?
Answer choices
- AAcromegaly
- BProlactinoma
- CCraniopharyngioma
- DPrimary hyperparathyroidism
- EPheochromocytomaCorrect answer
- FHyperthyroidism from Graves disease
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