A 28-year-old primigravida at 32 weeks of gestation presents to the emergency department with complaints of vaginal bleeding and lower abdominal pain for the past 6 hours. On examination, blood pressure is 110/70 mmHg, pulse 92/min, and the uterus is tender with frequent contractions (4 in 10 minutes). Speculum examination reveals blood in the vaginal canal but no cervical lesions. Fetal heart rate is 140 bpm. Transvaginal ultrasound shows a low-lying placenta with retroplacental clot measuring 3 cm. Cervical length is 2.8 cm. What is the most appropriate immediate management?

Explanation

## Clinical Assessment This patient presents with **preterm labor with vaginal bleeding** at 32 weeks. The clinical findings are: - Regular uterine contractions (4 in 10 minutes = tachysystole) - Vaginal bleeding with retroplacental clot on ultrasound (placental abruption) - Intact fetal heart rate (reassuring) - Hemodynamically stable vital signs - Cervical length >2.5 cm (not imminent delivery) ## Management Rationale **Key Point:** In preterm labor between 24–34 weeks with maternal/fetal stability and no contraindications to expectant management, **antenatal corticosteroids are the priority intervention** to reduce neonatal morbidity and mortality. **High-Yield:** The **RCOG and ACOG guidelines** recommend: 1. **Corticosteroids** (betamethasone 12 mg IM × 2 doses, 24 hours apart) — reduces RDS by 60%, IVH by 50%, and NEC by 30% 2. **Admission and fetal monitoring** — continuous CTG to assess fetal well-being and contraction pattern 3. **Tocolytics** (nifedipine or atosiban) — only if delivery is not imminent and to allow time for corticosteroid action 4. **Magnesium sulfate** — indicated if delivery expected <34 weeks for neuroprotection (reduces cerebral palsy) **Clinical Pearl:** Placental abruption with stable vitals and reassuring fetal heart rate does NOT mandate emergency cesarean section at 32 weeks. Expectant management with corticosteroids, tocolytics, and close monitoring is standard practice unless there is: - Maternal hemodynamic instability - Fetal distress (late decelerations, bradycardia) - Uncontrolled bleeding **Warning:** Do NOT discharge home — this patient requires inpatient monitoring for recurrent bleeding and labor progression. ## Why Betamethasone First? Betamethasone crosses the placenta and requires 24 hours for peak effect. Administering it immediately maximizes fetal lung maturity benefit. Tocolytics and magnesium sulfate are **adjunctive** to buy time for steroid action.