Q: 44 years old male who was rescued from a lost hiking trail after 4 days during Labor weekend, developed generalized body edema on feeding. What is refeeding edema?
Answer: Patients who have fasted for more than three days may develop generalized edema after refeeding, particularly with carbohydrates.
This is due to rise in insulin levels in response to renewed intake of carbohydrates. This causes enhanced reabsorption of sodium, which leads to edema.
#electrolytes
Reference:
DeFronzo RA, Cooke CR, Andres R, et al. The effect of insulin on renal handling of sodium, potassium, calcium, and phosphate in man. J Clin Invest 1975; 55:845.
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