A 27 year old woman presents to the emergency department with a presenting
complaint of lower abdominal pain. She has abdominal tenderness, temperature of
39.0°C, heart rate of 102 bpm, and a blood pressure of 130/85 mmHg. There is no
vaginal discharge. What is the SINGLE most appropriate next course of action to make
the diagnosis?
A. High vaginal swab
B. Endocervical swab
C. Pelvic ultrasound
D. Abdominal X-ray
E. Emergency laparoscopy