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Test ID NBLD0388 West Nile Virus, RNA, PCR, Molecular Detection, Spinal Fluid

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.

Specimen Type

CSF


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.


Specimen Minimum Volume

0.3 mL

Reject Due To

Heat-inactivated specimen Reject

Specimen Stability Information

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

Method Name

Real-Time Polymerase Chain Reaction (PCR)

Day(s) Performed

Monday through Friday

Report Available

Same day/1 to 5 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

87798

Secondary ID

608435

Reference Values

Negative

Reference values apply to all ages.

Reporting Name

West Nile Virus RNA, PCR, CSF

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.

Forms

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