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Test Name:
Western Equine Encephalitis IgM Antibody, by IFA, Cerebrospinal Fluid
- SBMF No:
45481 - Performance Lab Name:
ARUP Laboratories - Test Mnemonic:
CSF WEST M - ABN:
Not required - CPT Code:
86654 - LOINC Code:
9316-1 - Ref Lab Test No:
0098730 - Also Known As:
Encephalitis Antibody, Western Equine, IgM, CSF
CSF WEE IgM Ab - Also See:
45472 California Encephalitis IgM Antibody, CSF
45475 Eastern Equine Encephalitis IgM Antibody, CSF
45478 St. Louis Encephalitis IgM Antibody, CSF
28242 West Nile Virus IgM Antibody, CSF - Spec Type:
Cerebrospinal Fluid (CSF) - Spec Container:
Plastic transport tube with threaded cap - Pref Vol:
2.0 mL - Min Vol:
0.5 mL
Pediatric Collection: 0.15 mL - Spec Collect:
Collected by physician - Spec Store Transport:
Refrigerated - Spec Stability:
8 hours room temperature (20-30°C)
2 weeks refrigerated (2-8°C)
1 year frozen (-20°C) – Do not use frost-free units that undergo repeated freeze/thaw cycles - Spec Reject:
Heat-inactivated, contaminated, or hemolyzed sample - Methodology:
Indirect Fluorescent Antibody (IFA) - Clinical Significance:
Refer to:
- Reference Range:
- Western Equine Encephalitis, Antibody, IgM by IFA, CSF
- Less than 1:1
- Interpretive Data:
- This test is intended to be used as a semi-quantitative means of detecting western equine virus-specific IgM in CSF samples in which there is a clinical suspicion of western equine virus infection. A positive result for IgM may suggest current or recent infection. This test should not be used solely for quantitative purpose, nor should the results be used without correlation to clinical history or other data. Because other members of the Alphavirus family, such as eastern equine encephalitis virus, show extensive cross-reactivity with western equine encephalitis virus, serologic testing for these species should also be performed.
- Additional Test Info:
The manufacturer has not determined the efficacy of this test when performed on CSF specimens. The performance characteristics of this test were determined by ARUP laboratories. - Day Run:
Tue, Fri - Time Reported:
2-6 days - Test Type:
INFECTIOUS ANTIBODY
