The test for liver function is called a liver function test (LFT). This blood test measures the levels of various enzymes and proteins produced by the liver, which can indicate if the liver is functioning properly.
LFTs are often used to:
- Screen for liver disease: They can detect early signs of liver damage or disease.
- Monitor existing liver conditions: LFTs can track the progress of liver disease and the effectiveness of treatment.
- Assess the side effects of medications: Some medications can damage the liver, so LFTs can monitor for any potential problems.
The specific tests included in an LFT can vary, but they typically include:
- Alanine transaminase (ALT) and Aspartate transaminase (AST): These enzymes are released into the bloodstream when liver cells are damaged.
- Alkaline phosphatase (ALP): This enzyme is found in the liver and other tissues. Elevated levels can indicate bile duct obstruction or liver disease.
- Bilirubin: This is a yellow pigment that is produced when red blood cells are broken down. Elevated bilirubin levels can indicate liver damage or problems with the bile ducts.
- Albumin: This protein is produced by the liver. Low albumin levels can indicate liver damage or malnutrition.
