uk-plab-1 MCQ (SBA): Primary postpartum haemorrhage cause

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EasyO&GPrimary postpartum haemorrhage causeuk-plab-1

Immediately after vaginal delivery, a 28-year-old woman has heavy vaginal bleeding. The uterus feels boggy and enlarged on palpation. What is the most likely underlying cause of this primary postpartum haemorrhage?

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