Overview
Gastrointestinal (GI) bleeding is a common problem medical practitioners encounter in the emergency department and in the primary care setting. Annual hospital admissions for GI bleeding in the United States and United Kingdom have been estimated at up to 150 patients per 100000 population with a mortality rate of 5%-10%. While GI bleeding can be potentially life-threatening, it has been shown that many cases can be safely managed on an outpatient basis. The accurate diagnosis of GI bleeding relies on prompt resuscitation, initial risk evaluation, provisional clinical diagnosis followed by appropriate definitive investigation which enables specific interventions. This review provides a practical diagnostic guide for clinicians who may encounter patients with suspected GI bleeding.