What symptom is typical for an adolescent with anorexia nervosa that the nurse should expect?

In the context of anorexia nervosa, active instability refers to behaviors that may include excessive exercise, restlessness, or an inability to maintain a stable body weight, all of which are common in adolescents facing this disorder. Adolescents with anorexia often exhibit hyperactivity or difficulty sitting still, largely driven by a compulsive need to control their weight and body image. This active instability can manifest as a constant drive to engage in physical activity, even when the individual is fatigued or underweight.

The significance of recognizing active instability lies in its role as a behavior reflecting the severity of the eating disorder. It indicates a struggle with the psychological aspects of the disorder, including anxiety about weight gain and a preoccupation with food and body image. This can help healthcare providers tailor interventions and support specific to the behaviors exhibited by the adolescent.