Calc Function

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    Patent Pending

    Fibrosis-4 (FIB-4) Index for Liver Fibrosis

    Noninvasive estimate of liver scarring in HCV and HBV patients, to assess need for biopsy.
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    When to Use
    Pearls/Pitfalls
    Why Use
    years
    U/L
    ×10³/µL
    U/L

    Result:

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    Next Steps
    Evidence
    Creator Insights

    Advice

    • Low fibrosis scores may be appropriate candidates for medical management and may not require liver biopsy if FIB-4 scores continue to stay low.
    • Severe fibrosis/cirrhosis scores may need liver biopsy for confirmation of cirrhosis unless there are other clinical or imaging signs of progression to end-stage liver disease.