Liver function test
Liver function tests evaluate the functioning of the liver. Some cancers can affect the function of the liver, so a function test can help identify these conditions.
Commonly performed liver function tests include:
- Serum bilirubin test - This test measures the levels of bilirubin in the blood. Bilirubin is produced by the liver and is excreted in the bile. Elevated levels of bilirubin may indicate an obstruction of bile flow or a problem in the processing of bile by the liver.
- Serum albumin test - This test is used to measure the level of albumin (a protein in the blood) and may be useful in the diagnosis of liver disease.
- International normalized ratio (INR), formally called prothrombin time (PT) test - This test measures how long it takes for blood to clot. Blood clotting requires vitamin K and a protein that is made by the liver. Prolonged clotting may indicate liver disease or other deficiencies in specific clotting factors.