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Liver

AST

An enzyme present in liver, heart and skeletal muscle.

Unit U/LTypical adult range < 40 U/L
What it is

An enzyme present in liver, heart and skeletal muscle.

Why it matters

Read next to ALT it helps say whether a rise is coming from the liver or from muscle.

Reading the number

Hard exercise in the days before a draw can push it above the range with no liver problem at all. AST clearly higher than ALT points away from simple fatty liver.

What moves it
recent intense exercisealcoholmuscle injurymedications
Read alongside
ALTGGTCreatine kinaseBilirubin (total)
When to raise it

Worth discussing when it stays raised on a repeat taken after a quiet week.

Tracking only, not a diagnosis. The range above is a typical adult reference range — the range printed by the lab that ran your test is the one that applies to you. Discuss anything that concerns you with your doctor.

Also known as

On a report in another language.

A lab report names this analyte in its own language. Vitals Vault recognises each of these and files them all under AST.

TGOGOTAspartato AminotransferaseAspartaadi aminotransferaas

Track your ast over time.

AST is one of 165 analytes Vitals Vault charts over time. Import a lab report in any language and this number lands on a timeline only you can read.

Continue with Google
Tracking only. This app is not medical advice. Always discuss results and future analysis with your doctor.

Catalog entry last updated 2026-08-27. Browse all 165 metrics.