Medical calculator
Fibrosis-4 (FIB-4) Index for Liver Fibrosis
A pure-input calculator with clinically tiered output.
Enter age, AST, ALT, and platelet count.
Core Inputs
Age
Patient age
AST
Aspartate aminotransferase
U/L
ALT
Alanine aminotransferase
U/L
Platelets
Platelet count
10^9/L
Please complete all required fields first.