The Washington Manual of Medical Therapeutics helps you diagnose and treat hundreds of medical conditions. Consult clinical recommendations from a resource that has been trusted on the wards for 50+ years. Explore these free sample topics:
-- The first section of this topic is shown below --
Acute gastrointestinal (GI) bleeding is a common clinical problem that results in substantial morbidity, health-care resource utilization, and costs, especially when it develops in hospitalized patients.1
- Overt GI bleeding is the passage of fresh or altered blood in emesis or stool.
- Occult GI bleeding refers to a positive fecal occult blood test (stool guaiac or fecal immunochemical test) or iron deficiency anemia without visible blood in the stool.
- Obscure GI bleeding consists of GI blood loss of unknown origin that persists or recurs after negative initial endoscopic evaluation.2