IMMUNOGLOBULIN G SUBCLASS 1,2

Specimen Required
Draw blood in a SST. Centrifuge, separate and send 2.0 mL serum (0.5 mL minimum) refrigerated in a screw-capped plastic vial.

Alternate Specimen
Serum: Red-top

Rejection Criteria
Lipemia

Methodology
Turbidity

Stability
Room temperature: Unacceptable; Refrigerated: 3 days; Frozen: 2 weeks

Reference Range
Years:   IgG1 mg/dL   IgG2 mg/dL  
0-2:   194-842   23-300  
2-4:   315-945   36-225  
4-6:   306-945   61-345  
6-8:   288-918   44-375  
8-10:   432-1020   72-430  
10-12:   423-1060   76-355  
12-14:   342-1150   100-455  
14-18:   315-855   64-495  
>18:   382-929   242-700  

Performed
Monday-Friday

Turnaround Time3 days
Test CodeIGS12
CPT-4 Code (s)
82787 x 2
LOINC Codes
IgG1:   2466-1  
IgG2:   2467-9  

Warde
Medical
Laboratory