IMMUNOGLOBULIN A (IgA)

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:   1-7 mg/dL  
1 month:   1-53 mg/dL  
2 months:   3-47 mg/dL  
3 months:   5-46 mg/dL  
4 months:   4-72 mg/dL  
5 months:   8-83 mg/dL  
6 months:   8-67 mg/dL  
7-8 months:   11-89 mg/dL  
9-11 months:   16-83 mg/dL  
1 year:   14-105 mg/dL  
2 years:   14-122 mg/dL  
3 years:   22-157 mg/dL  
4 years:   25-152 mg/dL  
5-7 years:   33-200 mg/dL  
8-9 years:   45-234 mg/dL  
>=10 years:   70-400 mg/dL  

Performed
Sunday-Friday

Turnaround Time1 day
Test CodeIGA
CPT-4 Code (s)
82784
LOINC Codes
2458-8

Warde
Medical
Laboratory