A 28-year-old primigravida from rural Maharashtra presents at 32 weeks of gestation with a chief complaint of decreased fetal movements over the past 2 weeks. On examination, fundal height is 28 cm (less than gestational age). Ultrasound shows estimated fetal weight of 1400 g (< 10th centile for 32 weeks), normal amniotic fluid volume, and umbilical artery Doppler shows absent end-diastolic flow (AEDF). The fetus is in cephalic presentation. What is the most appropriate immediate management?