Blood Test Information

Alkaline Phosphatase isoenzymes

minimum sample volume required ~ 5ml

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Test Code: ALI

Tube type: SST

Special instructions
Sent away to Southmead Hospital
Contact Laboratory before requesting

Reference range
n/a

Turnaround Time
7 days

Department: Biochemistry

Clinical Application
Serum Alkaline Phosphatase (ALP) measurements are used in the diagnosis and treatment of hepatobiliary and bone diseases and form part of the liver function and calcium profiles. Measurement of gamma-GT may help in seeking cause of an elevated ALP: if GGT is not raised, then the source is likely to be bone. However elevated GGT does not necessarily indicate a liver origin of a raised ALP. ALP isoenzyme analysis may be helpful, but is only likely to produce useful results if ALP>140 IU/L. Bone-specific ALP may also be measured.