The urine urobilinogen test measures the amount of urobilinogen in urine. Urobilinogen is produced when bacteria in the intestines break down bilirubin.
Category: Urinalysis
Also known as: urobilinogen, urine urobilinogen, urobilinogen urine
Reference range: 0.1–1 mg/dL (Source: ABIM)
Standard unit: mg/dL
High values may indicate
High urine urobilinogen may indicate liver disease (hepatitis, cirrhosis), hemolytic anemia, or conditions causing excess red blood cell destruction.
Low values may indicate
Low or absent urine urobilinogen may indicate bile duct obstruction, severe liver disease, or antibiotic use that reduces intestinal bacteria.