Alanine aminotransferase is typically present at low levels in your bloodstream. What's considered to be the normal range depends on the laboratory doing the evaluation, but it is often 7-56 units ...

For patients with chronic viral hepatitis, clinicians instinctively rely on liver enzyme measurements to estimate disease activity and assess need for liver biopsy or antiviral treatment.

It has recently been proposed that the true upper normal limit of serum alanine aminotransferase (ALT ... should treat patients with serum ALT levels close to the upper limit with caution ...

The patient's liver blood test values returned to normal ... serum alanine transaminase, aspartate aminotransferase, alkaline phosphatase, and total and direct bilirubin levels -- prior to ...