A 32-year-old primigravida at 28 weeks gestation presents to the emergency department with severe right upper quadrant pain, nausea, and vomiting. On examination, blood pressure is 148/92 mmHg, and she has 2+ proteinuria on dipstick. Laboratory investigations reveal: hemoglobin 9.2 g/dL, platelets 85,000/mm³, AST 95 U/L, LDH 720 U/L, and indirect bilirubin 2.1 mg/dL. Peripheral blood smear shows schistocytes. The clinical presentation is consistent with the condition marked **D** in the diagram. Which of the following is the most appropriate immediate management?

Explanation

## Why option 1 is correct The clinical presentation—RUQ pain, microangiopathic hemolytic anemia (schistocytes, LDH >600, elevated indirect bilirubin), thrombocytopenia <100,000/mm³, and elevated transaminases (AST >70)—is pathognomonic for HELLP syndrome, the severe variant of preeclampsia marked as **D** in the diagram. According to Williams Obstetrics 26e and ACOG Practice Bulletin 222, the immediate management triad is: (1) **magnesium sulfate for seizure prophylaxis** (loading 4–6 g IV over 20 min, then 1–2 g/hr with monitoring of deep tendon reflexes, respiratory rate, and urine output); (2) **antihypertensive therapy** for severe hypertension (≥160/110); and (3) **definitive delivery**. At 28 weeks (23–34 week window), the standard approach is maternal stabilization, administration of corticosteroids for fetal lung maturity, and delivery within 48 hours unless clinical deterioration mandates earlier delivery. This balances maternal safety (HELLP is life-threatening; hepatic rupture from subcapsular hematoma is often fatal) with fetal benefit from corticosteroid-induced lung maturity. ## Why each distractor is wrong - **Option 2**: Deferring delivery until 34 weeks is contraindicated in HELLP syndrome. Delivery within 48 hours (after corticosteroid administration) is the standard of care in the 23–34 week window; delaying increases maternal risk of hepatic rupture, eclampsia, and fetal death. Oral nifedipine alone is insufficient for acute management. - **Option 3**: Platelet transfusion is reserved for platelet counts <20,000/mm³ or active bleeding. A count of 85,000/mm³ does not mandate transfusion and should not delay magnesium sulfate and delivery planning. Transfusing before addressing the underlying condition is ineffective and wastes blood products. - **Option 4**: While hydralazine is an appropriate antihypertensive, it addresses only one component of management. Observation for spontaneous resolution is dangerous—HELLP does not resolve without delivery. Magnesium sulfate and urgent delivery are non-negotiable. **High-Yield:** HELLP syndrome = severe preeclampsia variant; diagnosis requires microangiopathic hemolytic anemia (schistocytes, LDH >600) + AST >70 + platelets <100,000/mm³; management = Mg²⁺ + antihypertensives + delivery within 48 hours (23–34 weeks) or immediately (≥34 weeks). [cite: Williams Obstetrics 26e; ACOG Practice Bulletin 222]