Clarilab

Liver

ALT (SGPT) test

Also called SGPT, alanine aminotransferase

A liver enzyme released when liver cells are irritated or damaged.

Typical range
Up to about 40–45 U/L.
Usual recheck
About 3 months when out of range

Why it's done

The most liver-specific enzyme in the LFT.

What a high result can mean

Fatty liver (very common), alcohol, hepatitis, or medicines. Very high values need prompt review.

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More liver tests

Liver function test (LFT)ALT, AST, ALP, GGT, bilirubin, total protein and albumin. AST (SGOT)An enzyme found in the liver, heart and muscles. Alkaline phosphatase (ALP)An enzyme from the liver, bile ducts and bones. GGTA liver enzyme sensitive to alcohol and bile duct problems. Bilirubin (total)A yellow pigment from the normal breakdown of red cells, cleared by the liver. Bilirubin (direct)Bilirubin the liver has already processed.