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intestinal obstruction (IO): interruption in normal flow of intestinal…
intestinal obstruction (IO): interruption in normal flow of intestinal contents along intestinal tract
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cause
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vascular obstruction
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gangrene (volvulus, hernia, strangulation)
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pathophysiology
increase peritalsis, intestine empties distally
distention by fluid & gas & oral intake above the obstruction proximal to obstruction & increase intraluminal pressure
increase bacteria growth & toxins pass across intestinal membranes into abdominal cavity --> peritonitis
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