Final answer:
Among the provided options, "lack of appetite" is not a standard criterion for diagnosing anorexia nervosa. Individuals with this disorder may experience hunger but ignore it due to a fear of weight gain.
Step-by-step explanation:
Anorexia Nervosa Diagnosis Criteria
When diagnosing anorexia nervosa, several criteria are considered, including:
- A. An intense fear of gaining weight or becoming fat, even when underweight.
- B. A refusal to maintain a body weight at or above a minimally normal weight for age and height.
- C. In females who have reached puberty, the presence of amenorrhea, which is the absence of at least three consecutive menstrual cycles.
- D. A disturbance in the way one's body weight or shape is experienced, undue influence of body weight or shape on self-evaluation, or denial of the seriousness of the current low body weight.
However, among these, lack of appetite is not a standard criterion used for diagnosing anorexia nervosa. In fact, individuals with anorexia may still experience hunger but choose to ignore it due to their fear of gaining weight.