
Know What a FIB-4 Above 1.3 Means for Your Next Test
FIB-4 above 1.3 flags a second test, not a diagnosis. Over 65 the cutoff is 2.0, and age alone can lift the score

FIB-4 above 1.3 flags a second test, not a diagnosis. Over 65 the cutoff is 2.0, and age alone can lift the score

An AST/ALT ratio above 2 points to advanced liver injury more than drinking: 64% of 313 people in alcohol withdrawal had a ratio of 1.0 or less.

High AST with normal ALT often points beyond the liver. See how ACG guidance sorts muscle, heart and hemolysis causes by test.

High AST levels that are only mildly raised are common, per Mayo Clinic. Know which symptoms mean you should not wait to retest.

The AST normal range on your report may differ from what you read online: about 1 in 20 healthy people fall outside it.

AST blood test results can come from liver, muscle or heart, so one number cannot show where the rise began. Here is how to read yours.

Jaundice and high liver enzymes can occur together, and the eyes yellow first. Learn how to check in natural light and what tests find the cause.

Diabetes liver enzymes were elevated in 40.2% of 51,645 adults in one registry, and few had a fatty liver diagnosis. See what to ask.

At home liver test numbers need context: ACG puts healthy ALT at 29–33 IU/L for men and 19–25 IU/L for women.

Liver disease by state differs widely, but CDC's 2024 rates are age-adjusted per 100,000 residents. Learn how to read your state's number.