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Arbovirus Antibodies, IgM, CSF
2001595
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Ordering Recommendation
Not recommended as a stand-alone test. Refer to Arbovirus Antibodies, IgG and IgM, CSF (2001597).
Mnemonic
ARBO CSF M
Methodology
Semi-Quantitative Indirect Fluorescent Antibody/Semi-Quantitative Enzyme-Linked Immunosorbent Assay
Performed
Tue, Fri
Reported
1-5 days
New York DOH Approval Status
Specimens from New York clients will be sent out to a New York DOH approved laboratory, if possible.
Specimen Required
Patient Preparation
Collect
CSF.
Specimen Preparation
Transfer 4 mL CSF to an ARUP Standard Transport Tube. (Min: 1.5 mL)
Storage/Transport Temperature
Refrigerated.
Unacceptable Conditions
Contaminated, heat-inactivated , or hemolyzed specimens.
Remarks
Stability
Ambient: 8 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
Reference Interval
| Components | Reference Interval |
| St. Louis Encephalitis Antibody, IgM by IFA, CSF | Less than 1:1 |
| California Encephalitis Antibody, IgM by IFA, CSF | Less than 1:1 |
| Eastern Equine Encephalitis Antibody, IgM by IFA, CSF | Less than 1:1 |
| Western Equine Encephalitis, Antibody, IgM by IFA, CSF | Less than 1:1 |
| West Nile Virus Antibody, IgM by ELISA, CSF | 0.89 IV or less: Negative - No significant level of West Nile virus IgM antibody detected. 0.90-1.10 IV: Equivocal - Questionable presence of West Nile virus IgM antibody detected. Repeat testing in 10-14 days may be helpful. 1.11 IV or greater: Positive - Presence of IgM antibody to West Nile virus detected, suggestive of current or recent infection. |
Interpretive Data
Compliance Category
Laboratory Developed Test (LDT)
Note
Hotline History
N/A
CPT Codes
86651; 86652; 86653; 86654; 86788
Components
| Component Test Code* | Component Chart Name | LOINC |
|---|---|---|
| 0050239 | West Nile Virus Antibody IgM CSF | 39573-1 |
| 0098729 | Eastern Equine Enceph Ab, IgM, CSF | 10899-3 |
| 0098730 | Western Equine Enceph Ab, IgM, CSF | 9316-1 |
| 0098898 | California Encephalitis IgM CSF | 9540-6 |
| 0098899 | St. Louis Encephalitis Ab, IgM, CSF | 21510-3 |
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
Arbovirus Antibodies, IgM, CSF
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