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OBG · Antepartum hemorrhage: placenta previa
Sample itemAt 32 weeks, a patient has painless bright-red vaginal bleeding and a soft nontender uterus. Which diagnosis is most likely?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
C. Placenta previa
Placenta previa typically causes painless antepartum bleeding with a soft uterus. Digital vaginal examination should be avoided until placental location is known in significant bleeding.
Option by option
A. Placental abruption
Abruption more often causes painful bleeding, uterine tenderness, and hypertonicity.
B. Chorioamnionitis
Chorioamnionitis causes fever, uterine tenderness, and infection-related findings.
C. Placenta previa (correct)
Correct. Painless bleeding is the classic presentation of placenta previa.
D. Uterine rupture
Uterine rupture is associated with acute pain, fetal compromise, and loss of uterine integrity.
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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