Biomarker education
AST
Also called: Aspartate aminotransferase, SGOT
AST is an enzyme measured on many metabolic or liver panels and reviewed alongside ALT.
General biomarker education — not personalized medical advice. Learn more
What it generally measures
AST appears in liver, muscle, and other tissues. A blood value alone does not identify a single cause.
Common units on reports: U/L
Why people track it over time
People often look at AST with ALT over time to prepare questions for a clinician. Directional change is not a diagnosis.
Changes over time do not by themselves establish a diagnosis. Learn more
Questions you might ask a healthcare professional
- Ask how AST and ALT move together across your reports.
- Discuss recent strenuous activity or illness if your clinician has said those matter for you.
- Use the range from your source lab when comparing.
Related markers
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