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HelpTest ID POWVB Powassan Virus, RNA, Molecular Detection, PCR, Blood
Ordering Guidance
The Powassan virus polymerase chain reaction result may remain positive for a longer time in urine than in blood, serum, and cerebrospinal fluid (7 days or more).
Specimen Required
Container/Tube: Lavender top (EDTA)
Specimen Volume: 1 mL
Collection Instructions: Send whole blood specimen in original tube. Do not aliquot.
Useful For
Rapid testing for Powassan virus RNA (lineage 1 and lineage 2) using whole blood specimens
An adjunctive test to serology for detection of early Powassan virus 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 Powassan virus disease.
Special Instructions
Method Name
Real-Time Polymerase Chain Reaction (PCR)
Reporting Name
Powassan Virus, PCR, BloodSpecimen Type
Whole Blood EDTASpecimen Minimum Volume
0.3 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Whole Blood EDTA | Refrigerated (preferred) | 7 days | |
| Frozen | 7 days |
Reference Values
Negative
Day(s) Performed
Monday through Friday
Report Available
Same day/1 to 5 daysPerforming 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 |
|---|---|---|
| POWVB | Powassan Virus, PCR, Blood | 34456-4 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 617488 | Lineage 1 | 34456-4 |
| 618144 | Lineage 2 (Deer Tick Virus) | 34456-4 |
| 618148 | Powassan Virus PCR Comment | 77202-0 |
Forms
If not ordering electronically, complete, print, and send a Microbiology Test Request (T244) with the specimen.