Immunoglobulin, IgAPrint this page
Updated Test Information:
IgA accounts for 13 % of the plasma immunoglobulins and serves to protect the skin and mucosa against microorganisms. It is capable of binding toxins, and in combination with lysozyme develops anti-bacterial and antiviral activity. IgA is the predominant immunoglobulin in bodily secretions such as colostrum, saliva and sweat. Secretory IgA provides defense against local infections and is important in binding food antigens in the gut.
|Alternate Specimen Type||
Red, Li-heparin plasma, K2EDTA
|Specimen Collection / Processing Instructions||
SST - Separate serum or plasma from cells within 45 minutes of collection. If a red-top tube or green-top tube is used, transfer separated serum or plasma to a plastic transport tube.
|Additional Processing Details||
Separate serum or plasma from cells within 45 minutes of collection. If a red-top tube or green-top tube is used, transfer separated serum or plasma to a plastic transport tube.
8 months at 15‑25 °C
8 months at 2‑8 °C
8 months at (-15)‑(-25) °C
This test may not provide accurate results in patients with monoclonal gammopathy, due to individual sample characteristics which can be assessed by electrophoresis.
|Minimum Sample Volume||
|Pediatric Min. Volume (if applicable)||