What Is ALT?

Q:
What is ALT?

A:
Alanine transaminase (ALT), also called alanine aminotransferase, is a kind of transaminase enzyme. ALT is found in plasma and in various body tissues but is most common in the liver.

Besides, ALT is a clinical measure which is used as a part of the diagnostic evaluation of hepatocellular injury, to determine liver health. International units/liter (IU/L) or μkat is used to represent the range of ALT.

Usually, the reference range of ALT for female is ≤ 34 IU/L while the reference range for males is ≤ 45 IU/L.

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