Find Locations
For hours, walk-ins and appointments.Synonyms
- IgA, CSF
Special Instructions
The third tube of a routinely obtained three-tube set of CSF should be used for CSF IgA study.
Expected Turnaround Time
3 - 6 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Related Documents
Specimen Requirements
Specimen
Cerebrospinal fluid (CSF)
Volume
1 mL
Minimum Volume
0.25 mL
Container
Sterile container
Storage Instructions
Room temperature
Stability Requirements
Temperature | Period |
|---|---|
Room temperature | 14 days |
Refrigerated | 14 days |
Frozen | 14 days |
Freeze/thaw cycles | Stable x3 |
Test Details
Use
This test may be used to evaluate the central nervous system involvement by infection, neoplasm, or primary neurological disease (ie, multiple sclerosis). A local synthesis of IgA within the CNS is most prominent in patients with bacterial infections and has special relevance in the diagnosis of tuberculous meningitis.
Methodology
Immunologic
Reference Interval
See table.
Age | Male (mg/dL) | Female (mg/dL) |
|---|---|---|
0 to 1 y | Not established | Not established |
2 to 17 y | 0.00−0.26 | 0.00−0.26 |
18 to 50 y | 0.00−0.71 | 0.00−0.52 |
>50 y | 0.00−1.04 | 0.00−0.78 |
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 100115 | Immunoglobulin A, Quant, CSF | 2457-0 | 100115 | Immunoglobulin A, Quant, CSF | mg/dL | 2457-0 |
© 2021 Laboratory Corporation of America® Holdings and Lexi-Comp Inc. All Rights Reserved.
CPT Statement/Profile Statement
The LOINC® codes are copyright © 1994-2021, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf