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Anorexia nervosa with medical instability — ABFM Board MCQ

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HardMental healthAnorexia nervosa with medical instabilityABFM Board

A 16-year-old girl has 4 months of amenorrhea, weight loss, cold intolerance, and excessive exercise. BMI is 16.8 kg/m², heart rate is 48/min, potassium is 3.1 mEq/L, and ECG shows QT prolongation. Which of the following is the most appropriate next step?

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Correct answer: B — Hospital evaluation for medical stabilization

Anorexia nervosa with bradycardia, hypokalemia, QT prolongation, and low BMI requires urgent medical stabilization and multidisciplinary treatment. Hormonal contraception does not treat the underlying disorder.

Reference: American Psychiatric Association Eating Disorders Guideline