Postpartum Hemorrhage in a Patient Who Cannot Receive Methergine

Yes. Any cumulative loss greater than 1,000 mL, or loss with signs of hypovolemia, defines postpartum hemorrhage regardless of route of birth. Two points about the number matter:

• Visual estimation is unreliable - blood is hidden in drapes, on the floor, and under pads, and estimates routinely understate loss by 30–50%. A quantitative measurement of 1,150 mL is likely a lower bound.
• Tachycardia at 122 with cool, clammy skin means she is already compensating for volume loss; the blood pressure will fall late. Heart rate and skin signs are the earlier warning. Her 'I feel weird' plus anxiety is a reliable clinical signal.

Most likely cause is uterine atony (boggy fundus, deviated and elevated). But the cause ladder should be worked deliberately - tone, trauma, tissue, thrombin:

• Trauma: re-examine the repaired laceration and the vagina and cervix for a missed bleed or hematoma.
• Tissue: check for retained placenta or clots.
• Thrombin: she has a platelet count of 96,000 with a history of preeclampsia - this patient is at risk for HELLP and consumptive coagulopathy, so send a current CBC, fibrinogen, PT/INR, and type and crossmatch two units while you treat.

First-line: oxytocin - 10–40 units in 500–1,000 mL as an infusion, or 3 units IV slowly if you need immediate effect. She has only had IM oxytocin, so this is an untapped step. Combine with bimanual uterine massage and firm fundal pressure for a clot.

Second-line:

• Methylergonovine 0.2 mg IM is contraindicated here. She has preeclampsia and hypertension; ergots cause generalized vasoconstriction and can produce severe hypertension, stroke, and seizures. This is the single most important decision in this case.
• Carboprost (15-methyl PGF2α) 250 mcg IM every 15 minutes, max 2 g - effective, but use cautiously or avoid with asthma; she has no asthma history, so it is a reasonable next step.
• Misoprostol 800 mcg sublingual or buccal - no hypertensive contraindication; expect fever and shivering.
• Tranexamic acid 1 g IV over 10 minutes - give within three hours of birth; repeat once at 30 minutes if bleeding continues. It reduces death from hemorrhage and is not a substitute for a uterotonic.

Each drug should be given with a reassessment of tone and bleeding in between rather than stacking everything at once. Title the sequence in your documentation with times.

Escalate when bleeding is not controlled after two uterotonics plus massage and an empty bladder, or sooner if any of the following appear:

• Sustained tachycardia despite fluids, or a falling systolic pressure and narrowing pulse pressure.
• Estimated loss approaching 1,500 mL or continued brisk flow - the point at which you activate the massive transfusion protocol rather than waiting for a hemoglobin result. Blood loss is better judged by fibrinogen (<200 mg/dL predicts progression) and by vital-sign trend than by hemoglobin, which lags.
• Uterine atony refractory to medication - the next mechanical step is intrauterine balloon tamponade or a vacuum-induced hemorrhage-control device.
• Any suspicion of abruption, uterine rupture, or an unresponsive coagulopathy - straight to the OR.

Things to have ready before the crisis: blood products in the room, warming, a second large-bore IV, a hemorrhage cart, a quantitative measurement method moving forward (weighed laps and canisters, cumulative totals), strict input and output, and a call to the obstetrician, anesthesia, and the charge nurse. Do not leave the patient alone; assign a second nurse to documentation and to coordinate family communication.