Test Directory

IgA Subclasses, Serum

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Updated Test Information:

Test Description
IgA Subclasses, Serum
Synonym(s)
IgA Subclasses
Test ID
IGAS
General Information
Useful for:
Investigation of immune deficiency due to IgA2 deficiency
Evaluating patients with anaphylactic transfusion reactions
Specimen Type
Serum
Specimen Requirements
Red Top
Additional Processing Details
0.5 mL
Stability
Refrigerated (preferred) 7 days
Ambient 7 days
Frozen 7 days
Unacceptable Specimen Conditions
Gross hemolysis OK
Gross lipemia Reject
Gross icterus OK
Methodology
Nephelometry
Estimated TAT
1-2 days
Testing Schedule
Monday-Friday
CPT Code(s)
82784
82787
Reference Range

IgA

0-<5 months  7-37 mg/dL
5-<9 months 16-50 mg/dL
9-<15 months 27-66 mg/dL
15-<24 months 36-79 mg/dL
2-<4 years 27-246 mg/dL
4-<7 years 29-256 mg/dL
7-<10 years 34-274 mg/dL
10-<13 years 42-295 mg/dL
13-<16 years 52-319 mg/dL
16-<18 years 60-337 mg/dL
> or =18 years 61-356 mg/dL

IgA1

0-<5 months 10-34 mg/dL
5-<9 months 14-41 mg/dL
9-<15 months 20-50 mg/dL
15-<24 months 24-58 mg/dL
2-<4 years 16-162 mg/dL
4-<7 years 17-187 mg/dL
7-<10 years 21-221 mg/dL
10-<13 years 27-250 mg/dL
13-<16 years 36-275 mg/dL
16-<18 years 44-289 mg/dL
> or =18 years 50-314 mg/dL

IgA2

0-<5 months 0.4-5.5 mg/dL
5-<9 months 1.5-6.2 mg/dL
9-<15 months 2.8-7.0 mg/dL
15-<24 months 3.9-7.7 mg/dL
2-<4 years 1.3-31.1 mg/dL
4-<7 years 1.1-39.1 mg/dL
7-<10 years 1.4-48.0 mg/dL
10-<13 years 2.6-53.4 mg/dL
13-<16 years 4.7-55.1 mg/dL
16-<18 years 6.6-54.3 mg/dL
> or =18 years 9.7-156.0 mg/dL

 

Performing Lab
Mayo
LOINC Code(s)
2458-8, 6886-6, 6939-3