Thyroid Disorders USMLE Step 1 Practice Question
A 35-year-old woman presents with a 2-month history of heat intolerance, palpitations, and a 4 kg unintentional weight loss despite increased appetite. On examination, she has a fine tremor, tachycardia (HR 110), and a diffusely enlarged, firm thyroid gland without nodules. TSH is suppressed at 0.1 mIU/L, and free T4 is elevated at 28 pg/dL. Which of the following is the most likely diagnosis?
Answer choices
- AToxic multinodular goiter
- BTSH-secreting pituitary adenoma
- CFactitious hyperthyroidism
- DGraves diseaseCorrect answer
- EThyroiditis with thyrotoxicosis
- FThyroid hormone resistance syndrome
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