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Test ID WNCSF West Nile Virus, RNA, PCR, Molecular Detection, Spinal Fluid

Specimen Required

Collection Container/Tube:

Preferred: Vial number 2

Acceptable: Any vial number

Submission Container/Tube: Sterile screw cap vial

Useful For

Rapid testing for West Nile virus (WNV) RNA (lineage 1 and lineage 2) using cerebrospinal fluid specimens


An adjunctive test to serology for detection of early WNV infection (ie, first few days after symptom onset)


This assay should not be used for screening asymptomatic individuals and should only be used to test patients with signs and symptoms of WNV disease.

Method Name

Real-Time Polymerase Chain Reaction (PCR)

Reporting Name

West Nile Virus RNA, PCR, CSF

Specimen Type


Specimen Minimum Volume

0.3 mL

Specimen Stability Information

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

Reference Values


Reference values apply to all ages.

Day(s) Performed

Monday through Friday

Report Available

Same day/1 to 5 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test was developed, and its performance characteristics 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


LOINC Code Information

Test ID Test Order Name Order LOINC Value
WNCSF West Nile Virus RNA, PCR, CSF 34461-4


Result ID Test Result Name Result LOINC Value
608435 West Nile Virus RNA, PCR, CSF 34461-4