IMMUNOGLOBULIN G (IgG)

Test Documentation
Specimen Required
Draw blood in a SST. Centrifuge, separate and send 1.0 mL serum (0.5 mL minimum) refrigerated in a screw-capped plastic vial.

Alternate Specimen
Plasma: heparin (sodium or lithium), EDTA
Serum: Red-top

Methodology
Nephelometry

Stability
Room Temperature: Unacceptable; Refrigerated: 8 days; Frozen: 3 months

Reference Range
0-30 days:   611-1542 mg/dL  
1 month:   241-870 mg/dL  
2 months:   198-577 mg/dL  
3 months:   169-558 mg/dL  
4 months:   188-536 mg/dL  
5 months:   165-781 mg/dL  
6 months:   206-676 mg/dL  
7-8 months:   208-868 mg/dL  
9-11 months:   282-1026 mg/dL  
1 year:   331-1164 mg/dL  
2 years:   407-1009 mg/dL  
3 years:   423-1090 mg/dL  
4 years:   444-1187 mg/dL  
5-7 years:   608-1229 mg/dL  
8-9 years:   584-1509 mg/dL  
>=10 years:   700-1600 mg/dL  

Performed
Sunday-Friday

Turnaround Time1 day
Test CodeIGG
CPT-4 Code (s)
82784
LOINC Codes
2465-3

Warde
Medical
Laboratory