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Test Code IGA Immunoglobulin A (IgA) LAB73

Test Method

Immuno-Turbidimetric Method; Beckman DXC600

Specimen Requirement

1 mL of serum required.

Additional Specimen Collection Information

Collect blood in a red-top or serum gel (SST) tube. Serum should
be separated from contact with the cells within 2 hours of
collection. Specimens not centrifuged within 4 hours of collection
may be rejected. Refrigerate the specimen if unable to assay within
8 hours of collection. If samples are stored for more than 48
hours they should be frozen at -15 to – 20 C. Samples
with >3+ lipemia will be rejected.

Reference Values

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: 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

≥ 18 years: 61-356 mg/dL

Performance

Testing is performed Monday through Sunday.

Routine: Typically 4 hours after the specimen arrives at testing
site.

Expedite/STAT: Typically 1 hour after the specimen arrives at
testing site.

Useful For

Detecting or monitoring of monoclonal gammopathies and immune
deficiencies

LOINC Code Information

2458-8 IgA [Mass/Volume] In Serum Or Plasma

CPT Code Information

82784 Chemistry: Gammaglobulin (immunoglobulin); IgA, IgD, IgG,
IgM, each