Hypocalcemia after thyroidectomy — USMLE Step 3 MCQ
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Correct answer: E — Postoperative hypoparathyroidism
Hypocalcemia with hyperphosphatemia and tetany after thyroidectomy suggests transient or permanent hypoparathyroidism due to parathyroid gland injury or devascularization.
Reference: Endocrine surgery postoperative care guidance