A 30-year-old primigravida at 40 weeks undergoes amniotomy for induction of labour. Immediately after rupture of membranes, the fetal heart rate drops to 70 bpm for 2 minutes with slow return to baseline. The cervix is 4 cm dilated. What is the most likely diagnosis?
- A Uterine hyperstimulation
- B Placental abruption
- C Cord prolapse ✓
- D Fetal head compression
Correct answer: C. Cord prolapse
Explanation
Prolonged fetal bradycardia immediately after amniotomy strongly suggests cord prolapse, especially with an unengaged or high station head. This is an obstetric emergency requiring immediate vaginal examination to confirm and urgent delivery. Variable decelerations with overshoot are also characteristic.
Reference: Williams Obstetrics, 26th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.