Alkaline Phosphatase Isoenzymes

Test Code

Quest Code

CPT Codes
84075, 84080

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

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.

Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153

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.