RT Book, Section A1 Lee, Linda S. A2 McKean, Sylvia C. A2 Ross, John J. A2 Dressler, Daniel D. A2 Brotman, Daniel J. A2 Ginsberg, Jeffrey S. SR Print(0) ID 56206438 T1 Chapter 160. Acute Lower Gastrointestinal Bleeding T2 Principles and Practice of Hospital Medicine YR 2012 FD 2012 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-160389-8 LK accessmedicine.mhmedical.com/content.aspx?aid=56206438 RD 2024/04/18 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?