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Test Code WNGC West Nile Virus Antibody, IgG, Spinal Fluid

Reporting Name

West Nile Virus Ab, IgG, CSF

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Useful For

Aids in diagnosing recent or past central nervous system West Nile virus infection

Method Name

Only orderable as part of a profile. For more information see WNC / West Nile Virus Antibody, IgG and IgM, Spinal Fluid.

 

Enzyme-Linked Immunosorbent Assay (ELISA)


Specimen Required


Only orderable as part of a profile. For more information see WNC / West Nile Virus Antibody, IgG and IgM, Spinal Fluid.

 

Supplies: Sarstedt Aliquot Tube 5 mL (T914)

Collection Container/Tube: Sterile vial

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL


Specimen Type

CSF

Specimen Minimum Volume

0.8 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
CSF Refrigerated (preferred) 7 days
  Frozen  30 days

Reject Due To

Gross hemolysis Reject

Reference Values

Only orderable as part of a profile. For more information see WNC / West Nile Virus Antibody, IgG and IgM, Spinal Fluid.

 

IgG: Negative

Reference values apply to all ages.

Interpretation

A positive result may indicate recent or past central nervous system (CNS) infection with West Nile virus. Clinical correlation is necessary.

 

This assay is unable to distinguish between intrathecal antibody synthesis and serum antibodies introduced into the cerebrospinal fluid at the time of lumbar puncture or from a breakdown in the blood-brain barrier. Positive results should be interpreted with other laboratory and clinical data prior to a diagnosis of CNS infection.

Day(s) Performed

Monday, Wednesday, Friday

Report Available

Same day/1 day

Test Classification

This test has been modified from the manufacturer's instructions. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

86789

LOINC Code Information

Test ID Test Order Name Order LOINC Value
WNGC West Nile Virus Ab, IgG, CSF 41236-1

 

Result ID Test Result Name Result LOINC Value
WNGC West Nile Virus Ab, IgG, CSF 77953-8