Restrictive Anorexia Nervosa Is in Medicine / Internal Medicine — 14yo Child | Endocrinology | SMLE Q#691
SMLE Question #691
Medicine / Internal Medicine
Endocrinology
Last updated: February 2026
A 14-year-old girl with restrictive anorexia nervosa is admitted for monitored nasogastric feeding. She has had minimal intake for several weeks and a BMI of 14 kg/m². On day 3 of increasing caloric intake, she develops generalized weakness without vomiting or diarrhea. Routine blood tests show a new decrease in multiple electrolytes compared with admission values. What is the most likely explanation for these electrolyte abnormalities?
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