urobilinogen /uro·bi·lino·gen/ (-bi-lin´o-jen) a colorless compound formed in the intestines by reduction of bilirubin.
urobilinogen
u·ro·bi·lin·o·gen (y r  -b -l n  -jn, -j n)n. The precursor of urobilin and a product of the reduction of bilirubin. |
urobilinogen
[yoo͡r′əbīlin′əjən]
a colorless compound formed in the intestine after the breakdown of bilirubin by bacteria. Some of this substance is excreted in feces, and some is resorbed and excreted again in bile or urine. See also urobilin.
urobilinogen
a colorless compound formed in the intestines by the reduction of bilirubin. Small amounts of the bilirubin produced in the body by the breakdown of hemoglobin are excreted in the urine as urobilinogen. Increased amounts of urobilinogen in the urine indicate an excessive amount of bilirubin in the blood. Determination of the amount of urobilinogen excreted in a given period makes it possible to evaluate certain types of hemolytic anemia and also is of help in diagnosing liver dysfunction such as hepatocellular damage.
fecal urobilinogen
a group of urobilinoid substances which react with Ehrlich's reagent. Presence indicates an open bile duct and a functional enterohepatic circulation of bile pigments.
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