Review Question - QID 108587

A 36-year-old G2P1 at 34 weeks gestation presents to the obstetric triage unit with acute and sudden abdominal pain that started this afternoon. Prior to onset, she was at a music festival where she endorses drug use of an unknown substance. She describes the pain as diffuse and nearly constant but denies vaginal bleeding and loss of fluid. She feels painful contractions that are 1 minute apart. The patient otherwise has no medical history and does not take any medications. She had 1 spontaneous vaginal delivery 5 years ago. Her fetal heart rate tracing is shown in Figure A. Her temperature is 98.8°F (37.1°C), blood pressure is 104/58 mmHg, pulse is 99/min, and respirations are 15/min. Cervical exam is fingertip dilated, long, and high. Which of the following is associated with the most likely diagnosis in this patient?