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Blood test
 
Overview   Risks   Results   

ALP (alkaline phosphatase) isoenzyme

Normal values:

The normal value is 20 to 140 IU/L.

Note: IU/L = international units per liter

Adults have lower levels of ALP than children because children's bones are still growing. During some growth spurts, levels can be as high as 500 IU/L. Usually children are not measured because of the potential for such high amounts, so the abnormal results refer to adults.
The isoenzymes can reveal whether the increase is because of "bone" ALP or "liver" ALP.

What abnormal results mean:

Greater-than-normal ALP levels may indicate:

Lower-than-normal levels of ALP may indicate:


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