what does alt mean in blood test
The alanine aminotransferase (ALT) test is a blood test that checks for liver damage. Your doctor can use this test to find out if a disease, drug, or injury has damaged your liver. Your liver does a lot of important things for you: It makes a fluid called bile that helps your body digest food.
What It Is. An alanine aminotransferase (ALT) test is often part of an initial screening for liver disease. The liver plays several important roles: It stores fuel from food, makes proteins, and helps remove toxins from the body. The liver also makes bile, a fluid that helps in digestion.