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Test Code 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

Specimen Volume: 0.5 mL

Collection Instructions: Do not centrifuge or heat inactivate.


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

CSF

Specimen Minimum Volume

0.3 mL

Specimen Stability Information

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

Reject Due To

Heat-inactivated specimen Reject

Reference Values

Negative

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. It has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

87798

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

Forms

If not ordering electronically, complete, print, and send a Microbiology Test Request (T244) with the specimen.