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Bilirubin Direct

The Bilirubin Direct blood test is a medical test that measures the level of direct bilirubin in the blood. Bilirubin is a yellowish substance that is produced when red blood cells break down. It is typically processed by the liver and excreted in the bile, which is then eliminated from the body through the feces. There are two forms of bilirubin: indirect (unconjugated) bilirubin and direct (conjugated) bilirubin. Indirect bilirubin is not water-soluble and must be processed by the liver before it can be eliminated from the body. Direct bilirubin, on the other hand, is water-soluble and can be eliminated directly in the bile. A high level of direct bilirubin in the blood may indicate a problem with the liver or bile ducts, such as a blockage or inflammation. It can also be an indicator of certain medical conditions, such as hepatitis, cirrhosis, or gallstones. A Bilirubin Direct blood test is typically ordered as part of a liver function test or a comprehensive metabolic panel.

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