Free online APRI (AST-to-Platelet Ratio Index) Calculator for non-invasive liver fibrosis and cirrhosis assessment. Quick screening with just AST and platelet count. All data computed locally.
APRI (AST-to-Platelet Ratio Index) is a non-invasive blood-based index for assessing liver fibrosis and cirrhosis using AST and platelet count. WHO recommends it for HCV patient screening in resource-limited settings.
APRI <0.5: excludes significant fibrosis; 0.5-1.0: possible fibrosis; 1.0-1.5: significant fibrosis; 1.5-2.0: advanced fibrosis; >2.0: highly suggestive of cirrhosis.
Typically 40 U/L, but may vary by lab (35 for women in some labs). Check your lab report for the reference range.