system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 17-year-old girl is brought to the physician by her mother for the evaluation of irregular menstrual bleeding. Menses have occurred at 60- to 90-day intervals since menarche at the age of 12 years. Her last menstrual period was 4 weeks ago. She is sexually active with one male partner, and they use condoms consistently. She reports that she currently has no desire to have children. She is 165 cm (5 ft 5 in) tall and weighs 85 kg (187 lb); BMI is 31 kg/m2. Examination shows scattered pustules on the forehead and oily skin. There is coarse hair on the chin and upper lip. Fingerstick blood glucose concentration is 190 mg/dL. A urine pregnancy test is negative. Which of the following is the most appropriate pharmacotherapy?
assistant
Combination oral contraceptives