IgG4, Immunoglobulin Subclasses, Serum, Mayo Reflab
SoftLab Order Code
IGGS4
Epic Order Name
IgG4, Immunoglobulin Subclasses, Serum, Mayo Reflab
Epic Order ID
LAB4428
Laboratory
Reference Lab
Additional Test Information
This test only quantitates the IgG4 protein. If quantitation of all IgG subclass types is desired, order IGGS / IgG 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
1.0 mL
Storage or Stability
Refrigerated - stable ambient 14 days
Causes for Rejection
Gross hemolysis, gross lipemia
Patient Preparation
Fasting: 12 hours, preferred but not required