A 24-year-old sexually active woman presents to the clinic complaining of a bothersome vaginal discharge for the past 5 days. She describes the discharge as yellowish-green with a foul odor and notes associated vulvar itching and burning during urination. She reports having a new male sexual partner within the last month and uses condoms inconsistently. She denies fever, abdominal pain, or flank pain. Her last menstrual period ended 1 week ago. She has no significant past medical history and takes no daily medications. She has no known drug allergies.

She is afebrile. Her blood pressure is 118/74 mmHg with a heart rate of 78 bpm. Her respiratory rate is 16 breaths per minute, and her oxygen saturation is 99% on room air. She is alert and in no acute distress.