FIB-4

Alternative names, keywords

Fibrosis-4 score

Samples required

EDTA blood (purple cap/ black cap ring, 4 mL tube) for platelets (see FBC)

clotted blood (gold cap, 5 mL tube) for AST and ALT

Test indications

Assessment of risk of advanced liver fibrosis in suspected non-alcoholic fatty liver disease (NAFLD).

Test information 

FIB-4 score can be calculated as:

Non-invasive markers of fibrosis have not been sufficiently validated in children to recommend routine use in clinical practice. 

_{Source: Newsome PN, Cramb R, Davison SM, et al. Guidelines on the management of abnormal liver blood tests. Gut 2018;67:6-19.}

Reference range

Please refer to local guidance.

Turnaround time

24 hours for component tests.

Enquiries

Biochemistry (Automation)