Bilirubin, total.

Bilirubin is an important biomarker for liver function. An increase in bilirubin levels in the blood can indicate liver diseases such as hepatitis or liver cirrhosis. It is also an indicator of hemolytic anemia. A low bilirubin level can suggest impaired liver function or a blockage of the bile ducts. Regular monitoring of bilirubin levels is therefore crucial for the diagnosis and treatment of liver diseases.