Q86
Single choice
A 17-year-old girl is brought in by her parents because of their concerns about her weight loss. She is petite, and a normal weight for someone her height is 100 lbs, but she weighs 78 lbs. She reports menstrual irregularity. The patient believes she is obese. She does not believe she has a problem. Her mother reports that she found laxatives on her daughter's nightstand, and heard her vomiting in the bathroom yesterday after dinner.
Which of the following is the most likely diagnosis?