A 28-year-old primigravida has just delivered a healthy term infant vaginally. Five minutes after delivery of the placenta, she experiences heavy vaginal bleeding. On examination, the uterus is boggy and palpable above the umbilicus. Her blood pressure is 90/50 mmHg, and heart rate is 110 bpm. What is the most appropriate initial step in management?
✓ Correct Answer: Option B
Uterine atony is the most common cause of postpartum hemorrhage, presenting with a boggy uterus and heavy bleeding. Initial management includes vigorous uterine massage and administration of oxytocin to promote uterine contraction and prevent further blood loss.