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Alkaline Phosphatase Isoenzymes
Test CodeALKIS
Alias/See Also
231
CPT Codes
84075, 84080
Includes
Alkaline Phosphatase, Intestinal Isoenzymes, Bone Isoenzymes, Liver Isoenzymes, Placental Isoenzymes, Macrohepatic Isoenzymes
Preferred Specimen
2 mL serum collected in a plastic screw-cap vial
Minimum Volume
1 mL
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 21 days
Frozen: 21 days
Refrigerated: 21 days
Frozen: 21 days
Methodology
Electrophoresis • Spectrophotometry (SP)
Setup Schedule
Set up: Sun-Fri; Report available: 2-5 days after receipt at the performing laboratory. Add two (2) days for transport.
Reference Range
See Laboratory Report
Clinical Significance
When the Total Alkaline Phosphatase activity is increased, the Isoenzymes are useful in determining the source of the increased activity.
Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153
Last Updated: August 4, 2023