alt in blood test

Alanine aminotransferase (ALT) is an enzyme found primarily in the liver and is a crucial marker in blood tests for assessing liver health. Elevated levels of ALT in the blood often indicate liver damage or inflammation, as the enzyme is released into the bloodstream when liver cells are damaged. Normal ALT levels typically range from 7 to 56 units per liter of blood, but this can vary slightly depending on the laboratory and the population.