Postpartum Hemorrhage in a District Hospital
A 32-year-old woman, gravida 3 para 2, delivered a 4.2 kg infant vaginally after a prolonged second stage. She received oxytocin 10 IU IM after delivery. Thirty minutes postpartum, she has heavy vaginal bleeding. Her blood pressure is 85/50 mmHg, heart rate 130 bpm, respiratory rate 24/min, and oxygen saturation 97% on room air. She is pale, confused, and has cold extremities. The uterus is soft and boggy on palpation. Estimated blood loss is 1200 mL. The hospital has a blood bank but no intensive care unit. The on-call obstetrician is 30 minutes away.
1. What is the most likely cause of postpartum hemorrhage, and what immediate management steps should be taken?
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The most likely cause is uterine atony, suggested by the soft, boggy uterus and risk factors (grand multiparity, macrosomia, prolonged labor). Immediate management: call for help and activate massive transfusion protocol if available. Perform uterine massage and administer uterotonics: oxytocin 10 IU IM or 5 IU slow IV, then 20-40 IU in 500 mL saline over 4 hours; methylergonovine 0.2 mg IM (if no hypertension); carboprost 250 mcg IM every 15 minutes (if no asthma); misoprostol 800 mcg sublingually. Establish two large-bore IV lines, infuse crystalloids, and transfuse blood products (packed RBCs, fresh frozen plasma, platelets) as indicated. Insert a Foley catheter to monitor urine output. Prepare for uterine tamponade (Bakri balloon) or surgical intervention if bleeding persists. Administer oxygen and monitor vital signs closely.
2. How would you assess and manage the patient's hypovolemic shock while awaiting the obstetrician?
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Assess shock by vital signs (hypotension, tachycardia), mental status (confusion), skin perfusion (cold extremities), and urine output (oliguria). Manage with aggressive fluid resuscitation: two large-bore IVs, infuse 2-3 L of crystalloids rapidly, but avoid overloading. Blood transfusion is critical; crossmatch and transfuse packed RBCs. Use a balanced resuscitation strategy with blood products (1:1:1 ratio of RBCs:FFP:platelets if massive transfusion). Monitor response via vital signs, urine output, and mental status. Keep the patient warm, and consider tranexamic acid 1 g IV if within 3 hours of birth. Prepare for transfer to a higher-level facility if bleeding is uncontrolled.