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What Is A Bowel Obstruction?

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An obstruction could stem from within the cecum, colon, either the ascending, transverse, descending, sigmoid part of the colon, or rectum within the large intestine. Like a small intestinal obstruction, the blockage may be partial or complete and should be treated as a medical emergency. Obstruction of the mechanical nature, are the most common causes in the large intestine. PATHOPHYSIOLOGY — Interruption of a normal flow of intraluminal contents occurs a bowel obstruction ensues. The prevention of the passage of the gastrointestinal contents, due to a luminal defect which causes the obstruction which may be within the wall of the bowel (intrinsic) or external to the bowel (extrinsic). The small intestine can have a partial or complete obstruction. …show more content…

Bowel distention can be caused from air and gas being swallowed from bacterial fermentation. The bowel wall becomes edematous, the normal function absorptive is lost, and fluid is sequestered into the bowel lumen as the process continues. A loss of transudative fluid into the peritoneal cavity from the intestinal lumen can occur. Additional ongoing emesis leads to extra loss of Na, K, H, and Cl, and metabolic alkalosis in the fluid when there is a proximal bowl obstruction. Hypovolemia can be a result of the lost of these fluids. Emesis, can become feculent, which is normally nearly sterile, can have an overgrowth of bacteria which occurs in the proximal bowl. Perfusion to the wall of the intestine is reduced when intramural vessels of the small intestine become compromised and if the bowl dilation is excessive. If the metabolic needs of the tissue are insufficiently met due to a possible perfusion to a segment of intestine and unless the process is interrupted, occurrence of ischemia will appear, which will in the end, lead to necrosis and

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