What physical examination finding would be expected in a woman with severe anorexia nervosa?

The presence of fine, downy, unpigmented hair growth, known as lanugo, is a characteristic physical examination finding in individuals with severe anorexia nervosa. This occurs as a physiological response to extreme malnutrition and is the body's attempt to conserve heat in the context of significant weight loss, lowered body fat, and slowed metabolism. In the absence of sufficient body fat and nutrition, the body becomes vulnerable and starts exhibiting these adaptations, which include the growth of lanugo to help retain warmth.

Lanugo is often more prominently seen in individuals with a prolonged history of anorexia nervosa and can be an important indicator of the severity of the condition. Recognizing lanugo as a symptom can aid healthcare providers in assessing the nutritional status and severity of the eating disorder.

Other options presented do not align with the typical presentation of severe anorexia nervosa. For instance, hyperactive bowel sounds are more commonly associated with certain gastrointestinal disturbances rather than anorexia itself, while hyperthermia is not a typical finding as individuals with anorexia often experience hypothermia due to low body weight. Oily skin can arise from varying causes but does not specifically correlate with the physiological changes associated with anorexia nervosa.