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Test Code LAB1375 BK Virus PCR Quant, Urine

Infectious

Additional Codes

LAB1375

Clinical System Name

BK Virus PCR Quant, Urine

Synonyms

BK Virus PCR Quant Urine

Sample Requirements

Specimen: Urine

Container: Sterile Screw Capped Container

Preferred Vol: 10 mL

Minimum Vol: 1 mL

 

Urine with preservative is unnacceptable. 

 

Processing Instructions

CPA: Send sample to Microbiology. The sample may be shared with other Viral PCR tests but cannot be shared or added on to samples that have been run through any analyzer. Microbiology may split sample prior to testing if multiple tubes are not collected for Virology and other testing.

 

Off-site collection: Transfer urine to a plastic aliquot tube. Store at 2-8°C. Keep specimen at refridgeration temperature during transport.

Stability

Temp Time
Room temp 2 hours
Refrigerated 24 hours
Frozen Not acceptable

 

Availability

STAT Performed TAT
N Tue / Fri @ 6am 1-4 days

This test is not available STAT.
BKV PCR testing is not performed on holidays, but will resume on the next business day. 

Performing Laboratory

Seattle Children's Laboratory

 

Department

Microbiology Laboratory

CPT Codes

87799

Description

BK Virus DNA is detected via nucleic acid amplification. Quantitative nucleic acid detection assays offer analytic sensitivity to detect infection at an early stage before clinically significant disease occurs.  The quantitative nature of these assays also allow threshold levels that can be used to monitor or begin treatment.

 

The sample may be shared with other Viral PCR tests. For blood plasma, see BK Virus PCR Quant. For Bone Marrow or other tissue, see BK Virus Qualitative PCR Assay. Please forward requests for BK Virus PCR Quant Urine to the Microbiology Laboratory.

Reference Ranges

Result Interpretation
None Detected Negative
<200 Copies/mL Positive, (no titer reported, see comment*)
≥200 Copies/mL Positive, (titer reported)

* BKV: The limit of quantitative detection (the minimum virus level that gives a positive result in 95% of replicates) is 21.5 IU/mL (or 1.3 log IU/mL). The clinical significance of very low positive results is uncertain and should be individually analyzed with clinical discretion.