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Liver function tests are blood tests used to help find the cause of your symptoms and monitor liver disease or damage. The tests measure the levels of certain enzymes and proteins in your blood.
Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) are two liver enzymes measured in a blood test to check the health of your liver. High AST and ALT levels are a general sign of a liver problem.
Understand the result with high, low, and normal results of AST and ALT. Symptoms of elevated or high liver enzymes in the blood include fever, abdominal pain, poor appetite, itching, and nausea. Elevated levels of AST and ALT may signify the level of liver damage and varies by person.
Generally speaking, the upper limit of typical for AST and ALT for men is 35 to 40 units per liter (U/L) and for women is 25 to 30 U/L. The upper limit of typical for ALP is around 115 U/L for men and 100 U/L for women. What does it mean if my liver enzymes are elevated?
Learn about liver blood tests used to detect liver damage diseases such as fatty liver, cirrhosis, hepatitis, and Tylenol liver damage. This includes measuring the aminotransferases enzymes (AST and ALT levels).
What are the five primary liver function tests? The most common liver tests include: Liver enzymes test. Your liver enzymes include alkaline phosphatase (ALP), alanine transaminase (ALT), aspartate aminotransferase (AST) and gamma-glutamyl transferase (GGT). These are elevated when there’s liver injury.
Liver function test reference ranges. These reference ranges can vary between laboratories, so always check local guidelines. Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) are enzymes found within liver cells at high concentrations.