A 32-year-old primigravida at 34 weeks of gestation presents to the emergency department with painless vaginal bleeding of 200 mL. She denies abdominal pain, contractions, or trauma. Vital signs: BP 128/82 mmHg, HR 88/min, RR 18/min. On speculum examination, blood is seen issuing from the cervical os. Transabdominal ultrasound confirms a low-lying placenta completely covering the internal cervical os. The fetal heart rate is 142/min with normal variability. What is the most appropriate immediate management?

Explanation

## Clinical Scenario Analysis This is a case of **placenta previa with antepartum hemorrhage (APH)** at 34 weeks gestation. The key clinical features are: - Painless vaginal bleeding (classic presentation) - Low-lying placenta completely covering the internal os (confirmed on transabdominal ultrasound) - Hemodynamically stable mother - Reassuring fetal status (normal FHR with variability) - Preterm gestation (34 weeks) ## Management Principles for Stable APH with Placenta Previa at 34 Weeks **Key Point:** At 34 weeks with active bleeding from confirmed placenta previa, the immediate priorities are: (1) **corticosteroids for fetal lung maturity**, (2) **NPO status in anticipation of possible operative delivery**, and (3) **hospital admission with preparation for emergency cesarean** if bleeding escalates. This is the standard approach per Williams Obstetrics and RCOG guidelines. ### Immediate Management Steps 1. **Corticosteroids (Betamethasone 12 mg IM × 2 doses, 24 hours apart)** — mandatory at 34 weeks to accelerate fetal lung maturity; this is a time-sensitive intervention that must not be delayed 2. **NPO** — the patient may require emergency cesarean at any moment; keeping her NPO reduces anesthetic risk 3. **Hospitalization** — mandatory for all symptomatic placenta previa; IV access, blood group & crossmatch, continuous fetal monitoring 4. **Prepare for emergency cesarean** — while expectant management is the goal, the team must be ready for immediate cesarean if hemorrhage becomes uncontrollable or fetal distress develops 5. **Avoid digital cervical examination** — absolute contraindication in placenta previa **High-Yield:** At 34 weeks with active APH from placenta previa, **betamethasone administration is a non-negotiable immediate step** because delivery may become necessary urgently, and the window for steroid benefit (48 hours) must be initiated promptly. Omitting steroids while simply "observing" is substandard care. ## Why Option B (Index 1) Is Correct Option B recommends: - **Betamethasone IM** (✓ essential at 34 weeks with active bleeding and potential imminent delivery) - **NPO** (✓ standard pre-operative precaution) - **Prepare for emergency cesarean** (✓ appropriate — while immediate cesarean is not performed if the patient is stable, preparation is mandatory) This represents the complete, immediate management bundle for a 34-week placenta previa with active hemorrhage. ## Why Other Options Are Wrong **Option A (Digital cervical examination):** This is an **absolute contraindication** in placenta previa. Inserting a finger into the cervix when the placenta covers the os risks catastrophic hemorrhage and fetal exsanguination. (Williams Obstetrics, 25th ed.) **Option C (Admit + transvaginal ultrasound + activity restriction only):** While admission and activity restriction are correct, this option critically **omits betamethasone**, which is the most time-sensitive intervention at 34 weeks. Additionally, transabdominal ultrasound has already confirmed complete placenta previa — repeating imaging with transvaginal ultrasound is not the immediate priority. This option is incomplete and therefore inferior. **Option D (Discharge home):** Discharge is **absolutely contraindicated** in symptomatic placenta previa. Recurrent hemorrhage occurs in 50–60% of cases; the patient requires immediate access to blood products, fetal monitoring, and rapid operative delivery capability. ## Clinical Pearl **Warning:** In placenta previa at 34 weeks with active bleeding, **never delay corticosteroids** while waiting to see if bleeding settles. The SME note correctly identified that omission of betamethasone from the "correct" option represents a clinically significant gap. Per Williams Obstetrics and ACOG guidelines, corticosteroids between 34+0 and 36+6 weeks are recommended when preterm delivery is anticipated — and active APH from placenta previa clearly meets this threshold. *Reference: Williams Obstetrics, 25th Edition, Chapter 41 (Obstetric Hemorrhage); ACOG Practice Bulletin No. 234 (Placenta Previa)*