Good to knowOne result rarely tells the whole story. Your provider looks at your results together with your symptoms, exam, and other tests.
What the test is
A high or unclear score is usually followed by an elastography scan (like FibroScan).
Why it's done
- Fatty liver, diabetes, or obesity
- Hepatitis B or C
- Abnormal liver tests
Getting ready and what happens
- None beyond routine blood tests.
How the test is done
- Calculated from AST, ALT, platelets, and age.
What the results mean
| Result | Typical range for adults |
|---|---|
| Low risk of advanced scarring | FIB-4 below 1.3 |
| Unclear | 1.3 to 2.67 |
| Higher risk | Above 2.67 |
Normal ranges vary from lab to lab and can differ by age, sex, and pregnancy. Your report lists your lab's own range next to each result. A result a little outside the range is often not a problem.
Unclear or high
An elastography scan or specialist referral is often next.
Questions to ask your provider
- What do my results mean for me?
- Do I need to repeat this test or have other tests?
Risks
A blood draw is very safe. You may have slight pain or a small bruise where the needle went in.
Related conditions
Related tests
Sources
Last updated 2026-11-13.