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Alkaline Phosphatase Isoenzymes

Test Code
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


Methodology
Electrophoresis • Spectrophotometry (SP)

Setup Schedule
Set up: Sun-Fri; Report available: 2-5 days


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.




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.