Immunoglobulin G Subclass 2

Message
For Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.


Test Code
IGGSU2


Alias/See Also
5426;
IgG Subclass 2


CPT Codes
82787

Preferred Specimen
2 mL Serum


Minimum Volume
1.5 mL Serum


Instructions
SST or Red top: Avoid hemolysis. Invert a minimum of 5 times, then allow to clot in an upright position for 30 minutes. Centrifuge the the tube for at least 10 minutes. Keep tightly stoppered.


Transport Container
SST (speckled top tube) or Red top


Transport Temperature
Room Temperature


Specimen Stability
Room Temperature = 24 hours
Refrigerated = 7 days
Frozen = at least 7 days


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


Methodology
Nephelometry

Setup Schedule
Monday and Thursday
BS


Report Available
3 days


Clinical Significance
Increased IgG is associated with acute and chronic inflammations, monoclonal IgG myeloma, autoimmune diseases; decreased IgG is found in selective IgG deficiency, Bruton's Disease, and acquired immune deficiency.


Performing Laboratory
CompuNet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine, OH 45439


Last Updated: November 22, 2021


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.