BK Virus, Quantitative PCR, Blood
Ordering Recommendation

Detect and quantify BK virus in blood.

Quantitative Real-Time Polymerase Chain Reaction
1-3 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
Lavender (EDTA), pink (K2EDTA), or serum separator tube 
Specimen Preparation
Transport 1 mL whole blood, serum or plasma in a sterile container. (Min: 0.5 mL). 
Storage/Transport Temperature
Unacceptable Conditions
Urine (refer to BK Virus, Quantitative PCR, Urine, ARUP test code 2002310). Heparinized specimens. 
Specimen source required. 
Ambient: 24 hours; Refrigerated: 72 hours; Frozen: 1 month 
Reference Interval
Not detected
Interpretive Data
The quantitative range of this assay is 2.6-8.6 log copies/mL (390-390,000,000 copies/mL).

A negative result (less than 2.6 log copies/mL or less than 390 copies/mL) does not rule out the presence of PCR inhibitors in the patient specimen or BK virus DNA concentrations below the level of detection of the assay. Inhibition may also lead to underestimation of viral quantitation.

No international standard is currently available for calibration of this assay. Caution should be taken when interpreting results generated by different assay methodologies.

Compliance Statement A: Analyte specific reagents (ASR) are used in many laboratory tests necessary for standard medical care and generally do not require U.S. Food and Drug Administration (FDA) approval or clearance. This test was developed and its performance characteristics determined by ARUP Laboratories. The U.S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions. This test should not be regarded as investigational or for research use.

The limit of quantification for this DNA assay is 2.6 log copies/mL (390 copies/mL). If the assay DID NOT DETECT the virus, the test result will be reported as "< 2.6 log copies/mL (< 390 copies/mL)." If the assay DETECTED the presence of the virus but was not able to accurately quantify the number of copies, the test result will be reported as "Not Quantified."
Component Test Code*Component Chart NameLOINC
2002305BK Virus (cpy/mL), Blood48309-9
2002307BK Virus Source, Blood31208-2
2002308BK Virus (log cpy/mL), Blood43201-3
2002309BK Virus Interp, Blood63475-8
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
  • BK Virus Blood Quant PCR
  • BKV Quant blood
  • Polyomavirus
  • Viral load monitoring