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Choose collection locationBiochemistry · Individual laboratory test
Total bilirubin combines the processed and unprocessed forms of a pigment released as the body recycles red blood cells.
Clinical authorDr Nirupama SabhapathySpecialist Clinical Pathology
Understanding the test
Also called Total Bilirubin
Total bilirubin provides a starting point when jaundice is suspected or a clinician is monitoring an established liver condition.
The measurement quantifies circulating bilirubin when the skin or the whites of the eyes appear yellow.
Previous totals and fractions can show whether a known liver or blood problem is changing.
Before your sample
Drink water as usual. If an accompanying test requires fasting, keep to the instructed interval rather than extending it; prolonged fasting can raise bilirubin.
A clinician takes a small sample of blood from a vein. The laboratory uses serum, the liquid separated from the blood after it clots.
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24 hoursLaboratory turnaround
An increased total can come from either fraction or from both. Comparing its components avoids treating every elevated total as the same liver problem.
From sample to follow-up

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Choose collection locationLook for Bilirubin, Total in your report. Use the sample type and collection time when comparing it with an earlier report.
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If the total is elevated, ask whether a fractionated bilirubin result is already available before arranging another test.
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Patient questions
Two people can have the same total for different reasons. Knowing which fraction is raised helps the clinician decide whether to focus on red cells, the liver or bile flow.
No. It can also reflect faster red-cell turnover or a benign inherited variation such as Gilbert's syndrome, and it can rise briefly after a long fast or an acute illness. The fractions and the rest of the liver panel are what separate these possibilities.
Seek urgent medical advice if the whites of your eyes or your skin have newly turned yellow. Tell the clinician if your urine has become unusually dark or your stools unusually pale. The cause matters even before there is a result.
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Written by Dr Nirupama Sabhapathy, Specialist Clinical Pathology. Medically reviewed by Dr Joyce Jose, Specialist Clinical Pathology, on .
Catalogue information and AED price checked on 2 November 2026. Clinical suitability, preparation, collection arrangements and turnaround are confirmed for your selected test.