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Urine BilirubinAka: Urobilinogen

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  1. Confirmatory Test
    1. Ictotest
  2. Normal
    1. Negative for Bilirubin
  3. Positive for Conjugated Bilirubin
    1. Hepatitis
      1. Viral Hepatitis
      2. Toxic Hepatitis
      3. Drug Induced Hepatitis
    2. Biliary tract obstruction
  4. Positive for Urobilinogen
    1. Hepatitis
    2. Liver disease
      1. Cirrhosis
      2. Liver Metastases
      3. Liver infarction
    3. Hemolytic Jaundice
  5. Gross urine findings if Conjugated Bilirubin present
    1. Dark urine with yellow foam
    2. Sediment elements may be stained
  6. Causes of false positive Bilirubin on Urinalysis
    1. Pyridium
  7. Causes of false negative Bilirubin on Urinalysis
    1. Thorazine
    2. Selenium

Urobilinogen (C0042052)

Definition (MSH)A colorless compound formed in the intestines by the reduction of bilirubin. Some is excreted in the feces where it is oxidized to urobilin. Some is reabsorbed and re-excreted in the bile as bilirubin. At times, it is re-excreted in the urine, where it may be later oxidized to urobilin.
ConceptsOrganic Chemical (T109) , Biologically Active Substance (T123)
MSHD014558
EnglishUBG - Urobilinogen, UROB - Urobilinogen, Urobilinogen, UROBILINOGEN PREPARATION
Spanishurobilinogeno
Parent ConceptsPyrroles (C0034325), Bile Pigments (C0005402), Unclassified Ingredient Preparations (C1377282)
SourcesAOD, LNC, MSH, MTH, NDFRT, SCTSPA, SNOMEDCT
Derived from the NIH UMLS (Unified Medical Language System)



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