Macroamylase [5499X]

Test Code
54998


CPT Codes
82150

Preferred Specimen
2 mL serum


Minimum Volume
1 mL


Other Acceptable Specimens



Transport Container
Plastic screw-cap vial


Transport Temperature
Refrigerated (cold packs)


Specimen Stability
Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: 30 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis


Methodology
Polyethylene Glycol Precipitation • Spectrophotometry (SP)

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule
Set up: Tues, Thurs; Report available: 3-7 days


Reference Range
Not detected


Clinical Significance
Macroamylase is a laboratory, not a clinical entity. Amylase can complex with immunoglobulins or other high molecular weight proteins. Serum amylase appears falsely elevated. No clinical symptoms are associated with macroamylasemia.


Performing Laboratory
Quest Diagnostics Nichols Institute-San Juan Capistrano, CA
33608 Ortega Highway
San Juan Capistrano, CA 92675-2042




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.