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What do your alkaline phosphatase test results mean?

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This test looks for an enzyme in your blood to check that your liver works right. Higher-than-normal alkaline phosphatase levels (APL) for your age and sex doesn’t always mean you have a problem. Children and teens have higher levels than adults because their bones are still growing. If your ALP level is high, your doctor may have you take another test, called an ALP isoenzyme test, to check whether the alkaline phosphatase in your blood is coming from your liver or your bones.

SOURCES:

University of Rochester Medical Center Health Encyclopedia: “Alkaline Phosphatase.”

The Science Museum (U.K.): “Your Body -- What Do Your Cells Do?”

National Institutes of Health, Genetics Home Reference: “ALPL gene.”

American Association for Clinical Chemistry: “Lab Tests Online -- ALP.”

Kids Health by Nemours Foundation: “Blood Test -- Hepatic (Liver) Function Panel.”

Reviewed by Jennifer Robinson on May 15, 2019

SOURCES:

University of Rochester Medical Center Health Encyclopedia: “Alkaline Phosphatase.”

The Science Museum (U.K.): “Your Body -- What Do Your Cells Do?”

National Institutes of Health, Genetics Home Reference: “ALPL gene.”

American Association for Clinical Chemistry: “Lab Tests Online -- ALP.”

Kids Health by Nemours Foundation: “Blood Test -- Hepatic (Liver) Function Panel.”

Reviewed by Jennifer Robinson on May 15, 2019

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