Q. A 24-year-old primigravida at 36 weeks of gestation comes to the emergency room for a continuous leaking of fluid from her vagina. She denies any vaginal bleeding or abdominal pain. Her prenatal course has been uncomplicated, and she has received routine prenatal care. Her temperature is 98.4°F (36.9°C), pulse is 80/min, blood pressure is 120/86 mmHg, and respirations are 14/min. Physical examination is consistent with her gestational age. The fetal heart rate is 145 beats per minute with no decelerations. On pelvic examination, a pooling of clear fluid is noted in the vaginal vault, and the nitrazine paper turns blue. Sterile speculum examination shows a closed cervix. Ultrasound shows an amniotic fluid index (AFI) of 3 cm. What is the most appropriate next step in the management of this patient?