The Fibrosis 4 score is a non-invasive scoring system based on several laboratory tests that help to estimate the amount of scarring in the liver. This score has been studied in liver disease due to Hepatitis C and NASH.

Formula :

( Age x AST ) / ( Platelts x ( sqr ( ALT ) )

Explanation of Result :

For NASH : Fib4 score < 1.30 = F0-F1Fib4 score > 2.67 = F3-F4

For HCV with or without HIV : Fib4 score < 1.45 = F0-F1Fib4 score > 3.25 = F3-F4

References

Martínez SM1, Crespo G, Navasa M, Forns X. Noninvasive assessment of liver fibrosis. Hepatology. 2011 Jan;53(1):325-35. PMID: 21254180.
Martínez SM1, Crespo G, Navasa M, Forns X. Noninvasive assessment of liver fibrosis. Hepatology. 2011 Jan;53(1):325-35. PMID: 21254180.

Age :
AST :
ALT :
Platelet Count :
Using ukat/L for ALT/AST? :

Fibrosis 4 Score

References