Review Question - QID 214946

A 35-year-old woman presents to clinic with several months of worsening pain associated with menstruation. Initially, she had noticed pelvic and abdominal cramping pain with menstruation, but more recently she has also experienced pain with sexual intercourse and with defecation. She has no significant medical history and takes no medications. Her temperature is 36.8°C (98.2°F), blood pressure is 124/80 mmHg, pulse is 68/min, respirations are 14/min, and oxygen saturation is 100% on room air. On exam, her uterus is normal in size, there is no cervical motion tenderness, and there are no adnexal masses on palpation. Which of the following is the most appropriate next step in treatment?