Clinical use
Use this calculator for liver fibrosis estimation in thehepatology workflow. It is decision support and should be interpreted with the patient context, local protocols, and clinician judgment.
Calculate FIB-4
Interpretation
<1.30: low fibrosis risk — reassure. 1.30-2.67: indeterminate — consider FibroScan. >2.67: high probability of advanced fibrosis. Simple, widely available screening tool.
Required inputs
- Age
- Ast
- Alt
- Platelets
Evidence and limitations
This page cites 1 published reference. Confirm units and inclusion criteria before applying the output; calculators do not replace assessment, escalation, or local policy.
References
- Sterling RK et al. Hepatology 2006;43:1317-1325
Frequently asked questions
What is the FIB-4 Index?
FIB-4 Index is a clinical calculator used for Liver fibrosis estimation.
How do I interpret the FIB-4 Index?
<1.30: low fibrosis risk — reassure. 1.30-2.67: indeterminate — consider FibroScan. >2.67: high probability of advanced fibrosis. Simple, widely available screening tool.
What inputs are required for the FIB-4 Index?
Required inputs include Age, Ast, Alt, Platelets.
What is the evidence behind the FIB-4 Index?
The FIB-4 Index page cites Sterling RK et al. Hepatology 2006;43:1317-1325.
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