What Are Normal Ranges For AST And ALT?
What Are Normal Ranges For AST And ALT? Normal blood test results for typical liver function tests include: ALT. 7 to 55 units per liter (U/L) AST. 8 to 48 U/L . What AST and ALT is high? An AST/ALT ratio higher than one (where the AST is higher than ALT) is suggestive of cirrhosis.