Immunoglobulin A
Also known as: IGA
Use
The Immunoglobulin A test aids in the diagnosis or monitoring of IgA monoclonal gammopathies and IgA-related immune deficiencies. Immunoglobulin A is an important antibody that plays a critical role in the immune function of mucous membranes. Abnormal levels can indicate various health issues, including liver disease, autoimmune conditions, and chronic infections.
Special Instructions
Not provided.
Limitations
The Immunoglobulin A test cannot distinguish between different subclasses of IgA or identify the specific causes of abnormal IgA levels. Other tests may be required to diagnose specific conditions associated with IgA. Factors such as recent infections, vaccinations, and certain medications can affect IgA levels, potentially leading to false interpretations if not considered.
New York Approved
Methodology
Immunoassay (Quantitative Immunoturbidimetry)
Biomarkers
LOINC Codes
- 2458-8
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
1 mL
Minimum Volume
0.5 mL
Container
ARUP Standard Transport Tube
Collection Instructions
Separate serum or plasma from cells ASAP or within 2 hours of collection.
Causes for Rejection
Grossly hemolyzed or lipemic specimens
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Unacceptable |
| Refrigerated | 14 days |
| Frozen | 6 months |
Other tests from different labs that may be relevant