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OBG · Postpartum haemorrhage and emergencies: external aortic compression
Sample itemWhile theatre is being prepared for atonic postpartum haemorrhage with shock, which temporising manoeuvre can reduce pelvic blood flow?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
C. Pressing a closed fist on the abdominal aorta against the spine above the umbilicus
External aortic compression, applied through the abdominal wall just above the umbilicus, reduces blood flow to the uterus until definitive treatment. The femoral pulse is felt to check effectiveness. It is a temporising measure used alongside resuscitation.
Option by option
A. Pressing on both femoral arteries at the groin
Femoral compression does not stop uterine arterial flow, which arises higher in the pelvis.
B. Compressing the inferior vena cava below the umbilicus
Compressing the vena cava reduces venous return and worsens shock.
C. Pressing a closed fist on the abdominal aorta against the spine above the umbilicus (correct)
Correct. Aortic compression slows pelvic inflow while help is organised.
D. Vigorously shaking the uterine fundus
Shaking the fundus does not control bleeding and can cause inversion.
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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