Immunoglobulin A, CSF
Also known as: IGA CSF
Use
This test aids in the diagnosis of immune-mediated disorders affecting the nervous system by measuring the concentration of Immunoglobulin A (IgA) in cerebrospinal fluid (CSF). Abnormal levels of IgA in the CSF can indicate an immune response within the central nervous system.
Special Instructions
Collect CSF, centrifuge, and separate to remove cellular material, then transfer 1 mL of CSF to an ARUP Standard Transport Tube. Minimum volume required is 0.5 mL. Specimens should be refrigerated during transport.
Limitations
The test may not be able to differentiate between all types of immune-mediated disorders affecting the nervous system. Grossly bloody or hemolyzed specimens are unacceptable and will lead to rejection of the sample. The test is not suitable for serum or plasma specimens.
FDA ApprovedNew York Approved
Methodology
Immunoassay (Other)
Biomarkers
LOINC Codes
- 2457-0
Result Turnaround Time
1-5 days
Related Documents
For more information, please review the documents below
Specimen
Cerebrospinal Fluid
Volume
1 mL
Minimum Volume
0.5 mL
Container
ARUP Standard Transport Tube
Collection Instructions
Centrifuge and separate to remove cellular material. Transfer to transport tube.
Storage Instructions
Refrigerated transport
Causes for Rejection
Grossly bloody or hemolyzed specimens.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Unacceptable |
| Refrigerated | 1 month |
| Frozen | 6 months |
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