APRI Calculator
AST to Platelet Ratio Index for estimating likelihood of hepatic fibrosis or cirrhosis in hepatitis C.
Please enter valid positive numbers for all fields.
APRI Score:
This calculator is for educational and clinical-support purposes only. APRI should not be used alone to diagnose or exclude liver fibrosis or cirrhosis. Clinical assessment, history, imaging, elastography, and specialist judgment may be needed.
Formula:
APRI = [(AST / AST upper limit of normal) / platelet count in 10⁹/L] × 100
APRI = [(AST / AST upper limit of normal) / platelet count in 10⁹/L] × 100
