RT Book, Section A1 Saad, Antonio F. A1 Pacheco, Luis D. A2 Pacheco, Luis D. A2 Saade, George R. A2 Hankins, Gary D.V. SR Print(0) ID 1115520258 T1 Gastrointestinal Bleeding in Pregnancy T2 Maternal Medicine YR 2015 FD 2015 PB McGraw-Hill Education PP New York, NY SN 9780071824163 LK obgyn.mhmedical.com/content.aspx?aid=1115520258 RD 2024/04/24 AB The American College of Gastroenterology defines acute lower gastrointestinal bleeding (LGIB) as a bleeding episode from the gastrointestinal tract originating distal to the ligament of Treitz that may lead to unstable vital signs, anemia, or requirement of a blood transfusion.1 Acute LGIB most commonly presents as hematochezia and often necessitates hospital admission, immediate workup, and treatment. In this section, we will be focusing on the initial evaluation of acute hematochezia associated with inflammatory bowel disease (IBD), the major etiology of LGIB in the young adult population.