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Post-thyroidectomy hypocalcemia — USMLE Step 3 MCQ

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ModerateSurgery (post-operative, follow-up)Post-thyroidectomy hypocalcemiaUSMLE Step 3

A 47-year-old woman has perioral tingling and hand cramps 18 hours after total thyroidectomy. Chvostek sign is present. Calcium is 7.2 mg/dL and phosphate is elevated. Which of the following is the most likely explanation for this patient's findings?

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Correct answer: DTransient hypoparathyroidism

Hypocalcemia soon after thyroidectomy is commonly due to transient hypoparathyroidism from parathyroid devascularisation or stunning.

Reference: American Thyroid Association Surgery Guidance