NCLEX RN Practice Question

The correct answer highlights the defining psychological feature of anorexia nervosa, which involves an intense fear of gaining weight and a distorted body image. This leads to a restriction of food intake and extreme behaviors to maintain a lower weight. Other options, such as focusing on overeating or purging behaviors, describe related but separate conditions like bulimia nervosa. Similarly, while weight loss can be a result of anorexia nervosa, it is a symptom and not the defining psychological characteristic of the diagnosis.