Clarilab

Liver

Alkaline phosphatase (ALP) test

Also called ALP

An enzyme from the liver, bile ducts and bones.

Typical range
About 40–130 U/L in adults.
Usual recheck
About 3 months when out of range

Why it's done

Part of the LFT.

What a high result can mean

Blocked bile flow, bone growth or bone disease. Normally higher in children, teenagers and late pregnancy.

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More liver tests

Liver function test (LFT)ALT, AST, ALP, GGT, bilirubin, total protein and albumin. ALT (SGPT)A liver enzyme released when liver cells are irritated or damaged. AST (SGOT)An enzyme found in the liver, heart and muscles. 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.