A 29-year-old woman delivers vaginally at a rural hospital. Thirty minutes later she has heavy vaginal bleeding estimated at 1,200 mL, tachycardia and hypotension. The uterus is boggy. What is the most appropriate immediate management?AObservation only because postpartum bleeding is expectedBUterine massage and administration of oxytocin, with preparation for further uterotonics and transfer if neededCStart warfarin to prevent thrombosisDDelay treatment until haemoglobin is checkedEInsert a urinary catheter only and wait for spontaneous resolutionCheck my answer