Nasogastric tube lavage may be helpful in the diagnosis of lower gastrointestinal<unk> . NGT helps in differentiating LGIB from UGIB. Evidence of old (brown colored or 'coffee grounds') or fresh blood documents presence of UGIB. Evidence of bilious material rules out<unk>  distal to the pylorus.
Lower gastrointestinal bleeding other diagnostic studies
Upper gastrointestinal bleeding other diagnostic studies
Lower gastrointestinal bleeding other imaging findings
Upper gastrointestinal bleeding other imaging findings
Lower gastrointestinal bleeding differential diagnosis
Small intestine cancer other diagnostic studies
Lower gastrointestinal bleeding laboratory findings
Gastrointestinal varices other diagnostic studies