This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Psychiatry
Diagnostic criteria for Bulimia nervosa are all EXCEPT 
Select and explain. 
A. Binge Eating, B. Presence of other psychiatric disorders, C. Lack Of Control Over Eating Behaviour, D. Self Induced Vomiting
B: Presence of other psychiatric disorders
Answer: B: Presence of other psychiatric disorders 
Explanation: (B) Presence of other psychiatric disorders # BULIMIA NERVOSA (BN) is an eating disorder characterized by eating binges typically followed by efforts to purge calories through self-induced vomiting, laxative and/or diuretic abuse, prolonged fasting, or excessive exercise. Fear of weight gain leads to the characteristic purging behavior, but BN is centered around the practice of binge eating.> The Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV), describes diagnostic criteria for BN and includes the following:> Recurrent episodes of binge eating, characterized by the following:> Eating an amount of food, in a discrete period of time, that is larger than most people would eat during a similar period of time under similar circumstances.> A perceived lack of control over eating during the episode of binge eating> Recurrent inappropriate compensatory behavior used to prevent weight gain> Occurrence of binge eating and inappropriate compensatory behaviors, on average, at least twice a week for 3 months> Self-evaluation unduly influenced by body shape and weight> Does not occur exclusively during episodes of anorexia nervosa.