After rupture of the membranes a midwife feels a pulsating loop of cord in the vagina. What is the most likely diagnosis?

Answer and explanation

Correct answer: B. Umbilical cord prolapse

  1. Step 1: The picture of a pulsating cord felt after rupture of membranes fits Umbilical cord prolapse.
Answer
Umbilical cord prolapse.
Why not the others: 'Placental abruption': it gives painful bleeding with a rigid uterus. 'Vasa praevia': it gives painless bleeding with fetal bradycardia after rupture of membranes. 'Uterine rupture': it follows scar dehiscence with sudden pain and loss of contractions.

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