IgG Subclasses, Serum, Mayo, RefLab
Alternate Names
Immunoglobulins G1, G2, G3, G4, Mayo code - IGGS
SoftLab Order Code
IGGSM
Epic Order Name
IgG Subclasses, Serum, Mayo, RefLab
Epic Order ID
LAB4429
Tests Included
Testing includes total IgG as well as the 4 subclasses of IgG.
For more information see Celiac Disease Testing Algorithm
Laboratory
Reference Lab
Additional Test Information
Second-order testing for evaluation of patients with clinical signs and symptoms of humoral immunodeficiency or combined immunodeficiency (cellular and humoral)
If testing for immunoglobulin subclass IgG4-related disease, the most appropriate test to order is IGGS4 / IgG4, Immunoglobulin Subclasses, Serum.
Sample Type
Serum
Collection Container
SST - (Gold top Serum Separator Tube)
Alternative Collection Container
Plain red top
Red/Black Speckle top
Collecting Volume
2.0 mL
Minimum Collecting Volume
2.0 mL
Storage or Stability
Refrigerated - stable 14 days ambient
Causes for Rejection
Gross hemolysis or lipemia
Patient Preparation
Fasting: 12 hours, preferred but not required