Nephrology

Bilirubin

Normal Range
Negative
Sample Type
Standard
Fasting
No
Unit
mg/dL

Bilirubin in the urine (bilirubinuria) is always considered an abnormal finding. Only conjugated bilirubin (water-soluble) can pass through the glomerular filter. Its presence in urine indicates that conjugated bilirubin levels in the blood are elevated, usually due to hepatobiliary disease, indicating an issue with liver excretion or bile duct patency.

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Interactive
mg/dL

Enter your lab result to see where you stand compared to the standard reference range.

Why Context Matters

Urine bilirubin is highly unstable when exposed to light (UV light decomposes bilirubin), which can lead to false negatives if the sample is not processed quickly. Conversely, certain medications (like Phenazopyridine) can color the urine and cause false-positive readings on dipsticks.

Lab ranges are statistical averages, not biological laws. "Normal" for a 20-year-old male isn't normal for a 60-year-old female.

Clinical References

Source-of-truth databases and clinical guidelines for Bilirubin:

Research & Guidelines

Related Indicators

Urine Routine

View Range

Urine - Fatty Casts & Droplets

View Range

Urine For Spot Protein

View Range
DR

Medically Reviewed by Dr. Binoy Babu, MBBS

Board Certified Doctor • 10+ Years Clinical Experience

Dr. Babu is a practicing physician dedicated to empowering patients with clear, actionable medical information. He founded 2opi to bridge the gap between complex lab reports and patient understanding, ensuring everyone has access to a reliable second opinion.

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