Endocrine and Reproductive Disorders · USMLE Step 1

A patient with hyperthyroidism undergoes radioactive iodine ablation. Which complication may occur?

  1. Permanent hypothyroidism
  2. Acute adrenal crisis
  3. Hyperprolactinemia
  4. Syndrome of inappropriate ADH
Show answer and explanation

Correct answer: Permanent hypothyroidism

Radioactive iodine frequently causes permanent hypothyroidism due to destruction of thyroid tissue. Lifelong thyroid hormone replacement is common.

Difficulty: Medium Question 11 of 20

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