Blood ammonia determination as a diagnostic tool in the differentiation of upper gastrointestinal bleeding.
D000641:Ammonia / Q000097:blood*; D002454:Cell Differentiation; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis*; D006470:Hemorrhage; D006801:Humans
D000641:Ammonia
AMMONIA/blood; HEMORRHAGE, GASTROINTESTINAL/diagnosis