• Why is this test used for patients on chronic medications?

It is used for patients taking medications that may potentially affect liver function to monitor the liver's health.

• Which symptoms might indicate the need for a total bilirubin test?

Symptoms that may warrant this test include yellowing of the skin or eyes, dark-colored urine, pale stools, persistent fatigue, and pain or swelling in the upper right abdomen.

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Total Bilirubin Screening Test

Total Bilirubin Test

The essential first step for diagnosing yellowing of the skin or eyes. This test measures total bilirubin to evaluate liver function and red blood cell health for comprehensive diagnosis.

Trusted medical contentUpdated: 04-09-2026Views: 17LHL-3038

About this service

A measurement of the total bilirubin level in the blood, which is the sum of direct (conjugated) and indirect (unconjugated) bilirubin. It is a vital indicator of the balance between bilirubin production from the breakdown of red blood cells and the liver's ability to receive, conjugate, and excrete it. Any disruption in this chain leads to elevated bilirubin levels and the appearance of jaundice.

Conditions and notices

8-12 hours fasting

Fasting is not routinely required for this test, but it is sometimes preferred to ensure the accuracy of the results of other liver tests if requested as part of a package.

Inform your doctor about all medications and herbal supplements you are taking, as some may affect liver function and therefore bilirubin levels.

Avoid drinking alcohol for at least 24 hours before the examination.

For infants, the sample is taken from the heel or vein according to the medical protocol.

Frequently Asked Questions

Short answers to the FAQs published with this service.

• What does the total bilirubin test measure?

The test measures the total amount of bilirubin in the blood, which is the sum of both direct (conjugated) and indirect (unconjugated) forms.

• Is there any preparation needed for this test?

Yes, you should fast for 8 to 12 hours before the test.

• What is the primary clinical purpose of this screening?

It serves as an initial screening tool to explore potential issues in the liver, bile ducts, or conditions involving increased red blood cell breakdown.

• How is this test used to monitor newborns?

Total Bilirubin Screening Test

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Conditions and notices

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