Diabetes Mellitus USMLE Step 1 Practice Question
A 30-year-old woman presents 2 months after a complicated delivery with massive postpartum hemorrhage requiring transfusion. She reports inability to lactate, fatigue, cold intolerance, and amenorrhea. Vital signs show BP 98/62, HR 58, temperature 36.1°C. She denies taking levothyroxine or other medications. Laboratory studies reveal TSH 8.2 mIU/L and free T4 0.8 ng/dL. Which of the following is the most likely diagnosis?
Answer choices
- ASheehan syndromeCorrect answer
- BPostpartum thyroiditis
- CProlactinoma
- DLymphocytic hypophysitis due to MEN 1
- EPrimary ovarian insufficiency
- FIodine deficiency hypothyroidism
See the full explanation
Get the correct-answer rationale, why each distractor is wrong, the underlying mechanism, and high-yield associations — plus adaptive practice that targets your weak areas — with a free MedBoardPRO account.