skip to main content

Pregnancy of uncertain viability — DRCOG MCQ

Instant feedback + full explanation. One question, done properly.

HardEarly PregnancyPregnancy of uncertain viabilityDRCOG

A 35-year-old woman attends EPAU with bleeding at 9 weeks. Transvaginal ultrasound shows an intrauterine gestational sac with mean sac diameter 23 mm and no embryo. She is stable and wants certainty before any treatment. What is the most appropriate investigation?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: B — Repeat transvaginal ultrasound after an appropriate interval

When ultrasound findings do not meet definitive criteria for miscarriage, repeat transvaginal ultrasound after the recommended interval avoids misdiagnosing a potentially viable pregnancy. Immediate treatment without diagnostic certainty is unsafe. The pearl is that early pregnancy ultrasound thresholds are deliberately conservative.

Reference: NICE NG126