Test Name: IgA
Health Link Test Code: XIGA
LIS Test Code: IGA
CPT Code(s): 82784
Included In: IGAM
Measurement of IgA aids in the diagnosis of humoral immunodeficiencies, ataxia-telangiectasia, multiple myeloma and hypergammaglobulinemic states.
Days Performed: Daily, 24 hours.
In-Lab Turnaround Time: 4 hours.
Stat In-Lab Turnaround Time: 1 hour.
Collection Container: Red cap with yellow ring (SST)
Also Acceptable: Red top
If there is the possibility that the patient has a cryoprotein, specimen MUST BE KEPT WARM UNTIL AFTER TESTING IS COMPLETE. Indicate specimen is to be drawn warm.
Collection Volume: 3 mL
Pediatric Collection Volume: 1 mL
Sample Analyzed: Serum
Testing Volume: 1 mL
Pediatric Testing Volume: 0.3 mL
Centrifuge within 2 hours of draw. Transfer cell-free serum to plastic vial. Refrigerate. Freeze serum if not assayed within 72 hours.
IMPORTANT: IF THE PATIENT HAS A CRYOPROTEIN, keep blood specimen at 37°C during entire processing procedure. Place collection tube in the 37°C incubator for two hours. Spin tube at 3000 rpm for 10 minutes at 37°C. Remove spun serum to labeled tube and forward to UWHC Chemistry Lab.
Transport specimen to Laboratory. Transport with coolant pack if coming from clinic location. Transport frozen serum aliquot on dry ice to Laboratory.
Important: For samples on patients suspected of having a cryoprotein, specimen MUST be processed prior to transport if coming from clinic location. Transport specimens with coolant pack after processing is complete.
Grossly hemolyzed specimens are not acceptable.
|Age:||Male (mg/dL)||Female (mg/dL)|
|0 days- 3 months||1-34||1-34|
|4 months-1 year||8-91||8-91|
|2 years-11 years||21-291||21-282|
|60 years and up||101-645||69-517|
Interpretation Type: Reference Interval