TY - CHAP M1 - Book, Section TI - Chapter 160. Acute Lower Gastrointestinal Bleeding A1 - Lee, Linda S. A2 - McKean, Sylvia C. A2 - Ross, John J. A2 - Dressler, Daniel D. A2 - Brotman, Daniel J. A2 - Ginsberg, Jeffrey S. PY - 2012 T2 - Principles and Practice of Hospital Medicine AB - What risk factors increase the severity of lower gastrointestinal (GI) bleeding?What are the categories and individual causal factors for colonic ischemia?What are the indications for tagged red blood cell scan and angiography in the setting of lower GI bleeding?What are the indications for surgery in patients with diverticular bleeding and ischemic colitis? SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/04/18 UR - accessmedicine.mhmedical.com/content.aspx?aid=56206438 ER -