Lower GI Bleeding. Dr. Thamer . LGI Bleeding : Abnormal hemorrhage into the lumen of the bowel from a source distal to the ligament of Treitz . 95% from the colon . Up to 40% of patients with lower GI bleeding, more than one potential source of hemorrhage is identified. .
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Lower GI Bleeding
So , depending on the overall clinical picture, the surgeon may choose either to perform EGD to rule out a duodenal bleeding source or to proceed with colonoscopy on the assumption that the source of the bleeding is in the lower GI tract.