Liver Function
AST (Aspartate Aminotransferase)
AST is an enzyme found in various parts of your body, including the liver, heart, muscles, and kidneys. Like ALT, it leaks into the blood when cells are damaged.
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Information verified for medical accuracy
Why is it tested?
It is tested with ALT to diagnose or monitor liver damage and disease. The AST/ALT ratio can help determine the specific type of liver problem.
What does a HIGH level mean?
- Liver disease (cirrhosis, hepatitis)
- Heart attack
- Muscle trauma or injury
- Pancreatitis
What does a LOW level mean?
- Usually normal and not a concern.
- Vitamin B6 deficiency (rare)
Normal Reference Range
8 to 48 U/L
*Ranges may vary slightly depending on the specific laboratory and testing methods used.
Related Biomarkers
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