Specimen Requirements

Title

IgA (IMMUNOGLOBULIN A)

Specimen Requirement

1 SST/1.0 mL serum. After 30 minutes of clotting, promptly centrifuge and refrigerate.

Methodology

Stability

Refrigerated 7 days

Reference Range

By Report*

Turnaround

24 Hours

Clinical Use

Evaluate humoral immunity; monitor therapy in IgA myeloma. Selective IgA deficiency has an increased association with allergies, recurrent sinopulmonary infection, autoimmune disease, and the HLA A28, B14 or A1, B14 types. IgA deficiency accompanied by a deficiency of subclass IgG2 is associated with recurrent sinopulmonary infections.

Test Code

IGAM