total bilirubin
Liver FunctionBlood sampleResults 24 hrsNo fasting
Total Bilirubin
Total bilirubin measures a yellow pigment formed when red blood cells break down, which the liver processes. This test helps assess liver function and can explain jaundice or yellowing of the skin and eyes.
Sample
Blood
Results
24 hrs
Fasting
Not required
Follow-up
Optional add-on
What this test detects
Total bilirubin
Enzymatic colorimetry · serum
Quantitative · mg/dL
When to get this test
Liver health
Helps evaluate how well the liver is processing and clearing bilirubin.
Jaundice evaluation
Useful when there is yellowing of the skin or eyes to help find the cause.
Red blood cell breakdown
Can reflect increased breakdown of red blood cells when other causes are considered.
How to prepare
01
No special preparation needed.
Common questions
What causes high bilirubin?
High bilirubin can come from liver conditions, blocked bile flow, or faster breakdown of red blood cells. The pattern of results helps point to the cause.
Is bilirubin linked to jaundice?
Yes, when bilirubin builds up it can cause jaundice, a yellowing of the skin and eyes. This test helps investigate why that may be happening.