skip to main content

Obstetric anal sphincter injury detection — DRCOG MCQ

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

HardIntrapartum CareObstetric anal sphincter injury detectionDRCOG

A woman has an uncomplicated vaginal birth after a spontaneous second stage. The placenta is complete and estimated blood loss is 300 mL. She has a second-degree tear that has been repaired. What is the most appropriate investigation?

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

Reveal the answer and explanation

Correct answer: D — Post-birth rectal examination

After vaginal birth, a post-birth rectal examination should be offered to help detect missed obstetric anal sphincter injury. Routine endoanal ultrasound or MRI is not required after an uncomplicated second-degree tear. Cervical screening has no role in assessing perineal trauma. The pearl is that systematic examination reduces missed OASI.

Reference: NICE NG235; RCOG OASI Care Bundle