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OBG · Labour: vacuum extraction
Sample itemVentouse (vacuum) extraction is contraindicated in which situation?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
C. Gestational age below 34 weeks
Vacuum is avoided before 34 weeks because of the risk of intracranial haemorrhage and cephalohaematoma. It is also contraindicated in face or brow presentation, bleeding disorders and an unengaged head. Complications include cephalohaematoma, subgaleal haemorrhage and retinal haemorrhage.
Option by option
A. Maternal exhaustion
Maternal exhaustion is an indication.
B. Occipitoanterior position with engaged head
An engaged occipitoanterior head is ideal.
C. Gestational age below 34 weeks (correct)
Correct. Preterm fetuses have fragile skulls and vessels.
D. Prolonged second stage with vertex presentation
Prolonged second stage is an indication.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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