Answer: Option 2 — Anti-HTN + ARM (Artificial Rupture of Membranes)

Clinical Analysis

Why Option 2 (Anti-HTN + ARM) is Correct

The key principle from Creasy & Resnik's Maternal-Fetal Medicine:

"If abruption has resulted in fetal death, vaginal delivery is preferred unless there are other obstetric contraindications or the mother is hemodynamically unstable." — Creasy & Resnik's Maternal-Fetal Medicine, p. 1027

• Hemodynamically compensated (BP elevated, not shocked; no active external bleeding)
• Already in active labor (6 cm dilated, 50% effaced, regular contractions)
• Fetus is dead → no indication to rush for C-section to "save the baby"

ARM (Artificial Rupture of Membranes):

• Amniotomy (ARM) is specifically recommended in abruption to:
  1. Accelerate labor — decompresses the uterus, reduces retroplacental hematoma pressure
  2. Reduces the risk of DIC — by preventing further release of thromboplastins into the maternal circulation (which cause consumptive coagulopathy)
  3. With the fetus already dead, vaginal delivery is preferred and ARM + oxytocin augmentation achieves this quickly

Anti-HTN:

• BP of 150/100 mmHg + 2+ proteinuria = preeclampsia requiring antihypertensive treatment (IV labetalol or hydralazine) to prevent cerebrovascular complications and maternal stroke

Why the Other Options Are Wrong

❌ Option 1 — Emergency C-Section

• C-section is NOT preferred when the fetus is already dead
• It exposes the mother to unnecessary surgical risk, especially with potential coagulopathy (DIC) from abruption
• Exception: if mother is hemodynamically unstable or labor is not progressing — neither applies here (she is 6 cm dilated in active labor)
• Creasy & Resnik: "Maternal or fetal compromise mandates immediate delivery, usually by cesarean section unless the patient is in an advanced stage of labor" — she IS in advanced labor

❌ Option 3 — Tocolytics

• Absolutely contraindicated in placental abruption
• Tocolytics would stop contractions, prolong the abruption, increase DIC risk, delay delivery, and worsen maternal outcome
• Creasy & Resnik explicitly states: "The use of tocolytics is controversial; in most cases, they should not be used" — and that's for mild/moderate abruption, not severe abruption with IUFD
• With a dead fetus and active abruption, tocolysis would be dangerous

❌ Option 4 — Observation

• Observation is only for mild abruption at a preterm gestation (<34 weeks) with a live, stable fetus
• This patient has severe abruption with fetal death — delivery must be expedited
• Delay risks DIC, hemorrhagic shock, and maternal death

Summary of Management Protocol

SEVERE ABRUPTION WITH IUFD + PREECLAMPSIA
│
├── Control BP → IV Labetalol / Hydralazine (Anti-HTN)
├── 2 large-bore IVs + blood products ready
├── Coagulation studies (fibrinogen, PT, aPTT, platelet count)
├── ARM (Amniotomy) → Accelerates labor, reduces DIC risk
├── Oxytocin augmentation if needed
├── Target vaginal delivery (mother in active labor, fetus dead)
└── C-section only if: maternal instability / no progress / obstetric emergency