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Alkaline phosphatase

About This Test

Department: Biochemistry


Gel/clotted/lithium heparin (yellow/red/green top)

Add on requests are accepted


Turnaround Time:

Within 24 hours



Part of liver function test profile/bone profile

Age-specific reference ranges will be stated on each individual report.

ALP concentration is commonly increased during growth, healing fractures, or during pregnancy (placental origin). Unexplained elevation of ALP is suggestive of bone or liver disease. Co-existing elevation of GGT indicates hepatic source of ALP.

Reference ranges:

Age range Reference range (U/L)
< 30 days 70 - 380
< 16 years 60 - 425
> 16 years (adults) 30 - 130

Derived from Pathology Harmony 2011

Results outside the reference range do not necessarily indicate disease. Similarly, results within the reference range do not preclude abnormality. Please contact the Duty Biochemist for discussion of individual patient results

Other Comments:

For more information, please see the following: ALP - Lab Tests Online

See also: ALTGGTBilirubinAlbumin