A 25-year-old sexually active woman presents to the emergency department with a 5-day history of progressively worsening lower abdominal pain, along with vaginal discharge, fever, and dyspareunia (pain during intercourse). She also reports irregular spotting between menstrual cycles. She has had multiple sexual partners in the past year and inconsistently uses condoms. On examination, she has a low-grade fever (38.3°C/100.9°F) and mild tachycardia. Abdominal palpation reveals tenderness in the lower quadrants, and a bimanual pelvic examination demonstrates: Cervical motion tenderness Bilateral adnexal tenderness Purulent cervical discharge Laboratory findings: Elevated WBC count and C-reactive protein (CRP) Vaginal swab: Positive for Chlamydia trachomatis, negative for Neisseria gonorrhoeae Transvaginal ultrasound: Thickened, fluid-filled fallopian tubes, consistent with salpingitis, but no tubo-ovarian abscess. What is the recommended outpatient antibiotic regimen for the treatment of this disorder?
