Arbovirus Antibodies, IgG and IgM, CSF


Abbrev Code:ARBOCSF   
Order Code:LAB1010Order Name:Arbovirus Abs, IgG and IgM, CSF
Order Instructions:Stand-alone testing is not recommended; if needed, the ARUP code for IgG is ARUP2001596 and for IGM ARUP2001595.
Synonyms:LHE LAB1211; Encephalitis Antibodies, IgM; Encephalitis Antibodies IgG
Methodology:Semi-quantitative indirect fluorescent antibody/Semi-quantitative enzyme linked immunosorbent assay
CPT Codes: 86651 x1, 86652 x2, 86653 x1, 86654 x1, 86788 x12, 86651 x1, 86652 x1, 86653 x1, 86654 x1, 86788 x1
Test Includes:California Encephalitis Antibody, Eastern Equine Encephalitis Antibody, St. Louis Encephalitis, Western Equine Encephalitis Antibody, West Nile Virus Antibody
Turnaround Time:Specimens are sent to the reference laboratory Mon-Sat.; results are reported within 1-5 days.
Compliance:

ARUP Laboratory Developed Test (LDT): For tests developed and validated by ARUP (previously referred to as Compliance Statement B, C or D). This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.


Collection Instructions

Specimen:CSF
Optimal Volume:4 mL
Minimum\Peds Volume:2.5 mL
Container:Sterile tube
Alternate Containers: Plastic leakproof container, sterile
Causes for Rejection:Heat-inactivated, contaminated or hemolyzed specimens.


Processing and Shipping

Specimen Processing:Do not process. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Stability:8 hours at room temperature; 2 weeks refrigerated; 1 year frozen (avoid repeated freeze/thaw cycles).
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:2001597


Interpretive

Reference Range:
California Encephalitis Antibody, IgG Less than 1:1
St. Louis Encephalitis Antibody, IgG Less than 1:1
Western Equine Encephalitis Antibody, IgG Less than 1:1
Eastern Equine Encephalitis Antibody, IgG Less than 1:1
West Nile Virus Antibody, IgG by ELISA, CSF 1.29 IV or less: Negative-No significant level of West Nile Virus IgG Antibody detected.
1.30-1.49 IV: Equivocal-Questionable presence of West Nile Virus IgG detected. Repeat testing in 10-14 days may be helpful.
1.50 IV or greater: Positive-Presence of IgG antibody to West Nile Virus detected, suggestive of current or past infection.

 
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.
 


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