Colonoscopy is the gold standard test for the diagnosis of lower gastrointestinal bleeding. However, endoscopy is the investigation of<unk>  in cases of lower gastrointestinal bleeding caused by ischemic colitis.
Lower gastrointestinal bleeding diagnostic study of choice
Upper gastrointestinal bleeding diagnostic study of choice
Epistaxis diagnostic study of choice
Gastrointestinal varices diagnostic study of choice
Mesenteric ischemia diagnostic study of choice
Upper gastrointestinal bleeding other diagnostic studies
Lower gastrointestinal bleeding other diagnostic studies
Lower gastrointestinal bleeding other imaging findings