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Test Code WNVQN West Nile Virus PCR Quantitation

Clinical System Name

West Nile Virus PCR Quantitation



Sample Requirements

Specimen: Whole Blood or CSF

Container(s): Lavender/EDTA or Red or Gold SST or CSF Tube

Preferred Vol: 4 mL Whole Blood or 2 mL CSF mL

Minimum Vol: 3.0 mL Whole Blood or 1 mL CSF


Note: This test can share a tube with other Viral PCR testing but a separate tube needs to be collected if Hematology (CBC, Platelet, ESR, etc) testing is ordered.

Processing Instructions

Reject due to:Dark Green/Sodium Heparin

Spin: Y

Aliquot: Y

Temp: 2- 4 C

Storage location: Spin blood, transfer 1 mL plasma to a plastic aliquot tube affixed with a large computer label.

Monday – Friday: Place sample in the Virology Section of the Sendouts Freezer Rack.

Saturday-Sunday & Holidays: Close batch in Mayo Access and courier to UW NW220. Place a copy of the Transfer List (indicate time sent) in the Virology Transport Binder. (Call on Holidays to be sure the lab is open to accept samples).


Off-site collection: Blood: Centrifuge tube within 2 hours of collection, aliquot serum/plasma & Freeze @ -20°C
CSF: Freeze within 2 hours of collection or ship immediately @ 4°C. If CSF has cells, spin & aliquot clear CSF-Freeze @ -20°C



Specimen Type Temperature Time
  Room temp






STAT Performed TAT
N May-Oct: Performed 2-3x/w Nov-April: Performed 1-2x/w 3 - 5 d


Performing Laboratory

University of Washington

Dept. of Laboratory Medicine

UW Molecular Virology Lab

1959 NE Pacific St, NW220
Seattle, WA 98195


Phone Number: (206) 520-4600


Department:  Send Outs

Phone Number: (206) 987-2563

Reference Range

None specified


Method: Polymerase Chain Reaction (PCR)

Analytical Volume: None specified


CPT Codes



Send Out Instructions


Reference Test Name: West Nile Virus by PCR Quantitative
Reference Test Number:



Send out M - F with the UW courier. Weekends and Holidays courier on dry ice to UW NW220.