Aspartate Aminotransferase to Alanine Aminotransferase Ratio Measurement

**Semantic type:** Laboratory Procedure

**Definition:** The determination of the ratio of aspartate aminotransferase (AST) compared to alanine aminotransferase (ALT) present in a sample. The measurement may be expressed as a ratio or percentage.

**Synonyms:** - AST/ALT - AST/ALT - ASTALT