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Question

Which of the following are positive indicators for breech vaginal delivery?

This question was previously asked in
UPSC CMS 2026 Surgery, Gynaecology & Obstetrics, and PSM Question Paper (02-Aug-2026)
The correct answer is

Frank breech, fetal weight 1.5 kg to 3.5 kg, gestational age more than 34 weeks

Frank breech, estimated fetal weight 1.5 to 3.5 kg and gestation beyond 34 weeks are the favourable criteria for planned vaginal breech delivery. A frank (extended) breech fits the pelvis best, so cord prolapse risk is lowest (about 0.5 percent, versus 5 to 10 percent for complete and 15 to 20 percent for footling). The weight window matters because a fetus above 3.5 kg risks after-coming head entrapment, while below 1.5 kg the head is disproportionately larger than the trunk, so the body delivers through an incompletely dilated cervix and the head is trapped.

Why the others are wrong: Fetal weight less than 1.5 kg is unfavourable for the head-to-trunk disproportion reason above. Weight more than 3.5 kg invites head entrapment and disproportion. Flexed (complete) breech rather than frank carries a much higher cord-prolapse rate, so it is not a positive indicator even with acceptable weight and gestation.

Key point: Safe planned vaginal breech equals frank breech, 1.5 to 3.5 kg, more than 34 weeks, flexed fetal head. Hyperextended head, footling presentation or previous caesarean mandate caesarean section.

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Important Questions from Complicated Labour Management

  1. Which one of the following is NOT a method of management of Deep Transverse Arrest with the living fetus?
  2. Successful version of breech presentation is likely in case all of the following EXCEPT:
  3. Given below are the Obstetric maneuvers and their indications. Which one of the following is correctly matched?
  4. Which of the following are the pre-requisites of outlet forceps delivery?
    1. Bladder should be empty
    2. Membranes should be intact
    3. Cervix should be fully dilated
    4. Fetal skull has reached level of pelvic floor
    Select the correct answer using the code given below :
  5. Indications and prerequisites for delivery with the ventouse include which of the following?
    1. Delay in the second stage of labour
    2. Non-reassuring fetal heart rate
    3. Gestation age less than 34 weeks of pregnancy
    4. Vertex presentation

    Select the correct answer using the code given below.
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