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Osmotic Diarrhoea

Clinical features of osmotic diarrhea
  • Osmotic diarrhoea stops when patient fasts.
  • Serum osmolality is less than the osmolality of the stool fluid.
  • Osmotic gap >125 milliosm/L
  • Osmotic gap is calculated by the formula: 290 — 2 X(Na* + K+)