USMLE® Step 1 style questions USMLE
A 26-year-old woman, gravida 2, para 1, at 40 weeks’ gestation comes to the gynecologic emergency department due to a history of amniotic fluid loss for the past 10 hours with uterine tenderness. She has no significant past medical history. Temperature is 39°C (102.2°F), pulse is 96/min, respirations are 20/min, and blood pressure is 100/60 mm Hg. Uterine contractions are sporadic and baseline fetal heart rate is 162/min. Speculum examination shows purulent amniotic fluid exuding from the cervical os. Which of the following clinical findings best describes the most likely diagnosis?