Fibrosis-4 index

Fibrosis-4 index (FIB-4)

fli

Fibrosis-4 (FIB-4) Index Calculator

Age (years)

AST (U/L)

ALT (U/L)

Platelet Count (×10⁹/L)

FIB-4 Interpretation i

< 1.3
Low Risk
No advanced fibrosis

1.3 – 2.67
Indeterminate
Further evaluation needed

> 2.67
High Risk
Possible advanced fibrosis