Aspartate Aminotransferase to Platelet Ratio Index

**Semantic type:** Laboratory Procedure

**Definition:** A calculation that indicates the likely presence of liver cirrhosis and fibrosis, measured as the relative measurement of aspartate aminotransferase (AST) to AST upper limit of normal, divided by the platelet count, and multiplied by 100.

**Synonyms:** - APRI - APRI - APRI Score - AST to Platelet Ratio Index - AST to Platelet Ratio Index - AST to Platelet Ratio Index