AST (Aspartate Aminotransferase)
What is it?
AST is an enzyme in the liver and heart. It rises with liver damage, heart attack, or muscle injury.
Normal ranges
Men: 10–40 U/L. Women: 7–35 U/L.
Units: U/L
Causes of deviations
Low levels:
Usually not clinically significant.
High levels:
Hepatitis, heart attack, muscle injury, statins.
When to see a doctor
If elevated, especially together with ALT.
This information is for educational purposes and does not replace medical advice.
Check in calculator