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Alkaline Phosphatase (ALP) details

What Alkaline Phosphatase (ALP) shows

Alkaline phosphatase (ALP) is an enzyme found mainly in the liver, bile ducts, and bones, with smaller amounts in the intestines and placenta. Elevated levels most commonly point to either a liver/bile duct problem โ€” such as a blocked bile duct, gallstones, or certain liver diseases โ€” or increased bone activity, including normal bone growth in children and teens, healing fractures, or bone conditions like Paget's disease. Because ALP alone can't distinguish between a liver or bone source, doctors typically look at it alongside other liver enzymes (like GGT, which rises with liver but not bone causes) or order a specific bone-source ALP test when needed. Low ALP is less common and can occasionally relate to certain nutritional deficiencies or genetic conditions.

Normal ranges

Typical adult range

35โ€“150 IU/L

Most labs report a range close to this

Hormunity optimal range

45โ€“100 IU/L

A narrower functional target

Each lab sets its own reference range. Always compare your result with the range printed on your report, and review it with a healthcare provider.

Tests that include Alkaline Phosphatase (ALP)

Labcorp Not offered
Labcorp Not offered
Quest Not offered
Quest Not offered
Labcorp Not offered
Labcorp Not offered
Labcorp Not offered
Labcorp Not offered
Labcorp Not offered
Quest Not offered
Labcorp Not offered
Labcorp Not offered
Labcorp Not offered
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