In anorexia nervosa, what is indicated when the patient’s weight is less than 75% of the expected weight?

In anorexia nervosa, what is indicated when the patient’s weight is less than 75% of the expected weight?

• A. Outpatient psychotherapy only
• B. No medical treatment needed
• C. Increase exercise
• D. Hospitalization for medical stabilization

Answer: (D)

When anorexia nervosa leads to weight well below what’s expected—less than about three-quarters of the expected weight—the body is in a state of significant malnutrition with medical instability. This level of malnutrition raises the risk of dangerous problems such as slow or irregular heart rate, low blood pressure, dehydration, and electrolyte abnormalities (like low potassium, phosphate, and magnesium). There's also a real risk of refeeding syndrome if nutrition is started too aggressively. Because of these risks, the patient needs inpatient medical stabilization to monitor vitals, correct fluids and electrolytes, and begin a controlled, monitored refeeding plan. Once medically stable, they can then proceed with psychiatric treatment and weight restoration in a setting that fits their clinical needs. Outpatient psychotherapy alone wouldn’t address these urgent medical concerns, and increasing exercise would only worsen the malnutrition; saying no medical treatment is needed would ignore the established medical risks at this level of weight loss.

When anorexia nervosa leads to weight well below what’s expected—less than about three-quarters of the expected weight—the body is in a state of significant malnutrition with medical instability. This level of malnutrition raises the risk of dangerous problems such as slow or irregular heart rate, low blood pressure, dehydration, and electrolyte abnormalities (like low potassium, phosphate, and magnesium). There's also a real risk of refeeding syndrome if nutrition is started too aggressively. Because of these risks, the patient needs inpatient medical stabilization to monitor vitals, correct fluids and electrolytes, and begin a controlled, monitored refeeding plan. Once medically stable, they can then proceed with psychiatric treatment and weight restoration in a setting that fits their clinical needs. Outpatient psychotherapy alone wouldn’t address these urgent medical concerns, and increasing exercise would only worsen the malnutrition; saying no medical treatment is needed would ignore the established medical risks at this level of weight loss.