Compare markers
ALT vs AST
ALT and AST are liver-associated enzymes that may rise for different reasons depending on context.
General biomarker education — not personalized medical advice. Learn more
ALT
ALT is an enzyme often included in liver-related blood panels.
AST
AST is an enzyme measured on many metabolic or liver panels and reviewed alongside ALT.
Why both appear on reports
Hepatic panels and CMPs commonly include both enzymes to compare patterns rather than a single value alone.
When to discuss with your clinician
Ask whether recent medications, alcohol use, or other labs should be reviewed alongside these enzymes.