ISSN 2398-2942      

Urinalysis: bilirubin

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Overview

  • Only conjugated bilirubin appears in urine (unconjugated is albumin bound).
  • Renal threshold low → small amounts may be present in urine of normal dogs, especially male dogs.

Sampling

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Tests

Methodologies

  • Immerse dipstick in urine until wet.
  • Remove and shake of excess urine.
  • Hold horizontally to avoid run-off between pads.
  • Read test at correct time interval.
  • Sediment examination may reveal bilirubin crystals.

Availability

  • All veterinary practices.
  • External laboratories.

Validity

Specificity

  • False-positive readings may occur in patients with hemolytic disease.

Result Data

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Further Reading

Publications

Refereed papers

Other sources of information

  • Vaden S L, Knoll J, Smith F W K & Tilley L P (2009) Urine Bilirubin. In: Blackwell's 5-Minute Veterinary Consult: Laboratory Tests and Diagnostic Procedures. Blackwell Publishing, USA. pp 671-673.
  • Stockham S & Scott M (2002) Urinary System. In: Fundamentals of Veterinary Clinical Pathology. Iowa State Press, USA. pp 319-320.

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