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OBG · Obstetric emergencies: Sheehan syndrome
Sample itemA woman who had severe PPH with shock 6 months ago has failure of lactation, amenorrhoea and loss of axillary hair. What is the first hormone deficiency to manifest?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
D. Prolactin
Sheehan syndrome is postpartum pituitary necrosis. Failure of lactation (prolactin deficiency) is the earliest feature, followed by loss of gonadotrophins, then TSH and ACTH. Treatment is hormone replacement, giving hydrocortisone before thyroxine.
Option by option
A. Vasopressin
Diabetes insipidus is uncommon in Sheehan syndrome.
B. TSH
TSH deficiency occurs later.
C. ACTH
ACTH deficiency occurs late but is life-threatening.
D. Prolactin (correct)
Correct. Failure of lactation is the earliest sign.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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