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Anorexia nervosa (severe) — MCCQE Part 1 MCQ

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HardEating DisordersAnorexia nervosa (severe)MCCQE Part 1

A 19-year-old woman with BMI 14.5 has restrictive eating, intense fear of weight gain, amenorrhoea. Bradycardic (HR 42), hypothermic. K 2.6. Most appropriate initial management priority?

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Correct answer: C — Medical stabilisation (correct K, cardiac monitoring) and refeeding with close metabolic monitoring

Severe AN with medical instability: hospitalise for medical stabilisation. Correct electrolytes first. Refeeding syndrome risk: start low (10-20 kcal/kg/d), advance slowly with phosphate/K monitoring. Full NG feeds risks fatal refeeding.

Reference: Canadian Eating Disorder Guidelines