Ordering Recommendation

Use to detect and quantify BK virus in plasma. For additional information regarding this test, please visit BK Virus by Quantitative NAAT.

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation

Lavender (EDTA), pink (K2EDTA), or plasma preparation tube (PPT).

Specimen Preparation

Separate from cells within 24 hours of collection. Transfer 2mL plasma to an ARUP standard transport tube (ARUP supply #15824). Available online through eSupply using ARUP Connect™ or contact ARUP Client Services at 800-522-2787. (Minimum volume, 1mL)

Storage/Transport Temperature


Unacceptable Conditions

Heparinized specimens, whole blood, serum. Urine (refer to BK Virus by Quantitative NAAT, Urine, ARUP test code 3006075).


After separation from cells: Ambient: 24 hrs; Refrigerated: 6 days; Frozen: 6 months


Quantitative Polymerase Chain Reaction




1-3 days

Reference Interval

Not detected

Interpretive Data

The quantitative range of this assay is 1.33-8.00 log IU/mL (21.5-100,000,000 IU/mL)

An interpretation of "Not Detected" does not rule out the presence of inhibitors or BKV DNA concentration below the level of detection of the assay. Care should be taken in the interpretation of any single viral load determination.

International standardization has improved comparability of assay results across laboratories, but discrepancies still exist due to commutability issues with the standard.

Compliance Category



The limit of quantification for this assay is 1.33 log IU/mL (21.5 IU/mL). If the assay DETECTED the presence of the virus but was not able to accurately quantify the viral load, the test result will be reported as "Not Quantified, Detected."

Hotline History


CPT Codes



Component Test Code* Component Chart Name LOINC
3006091 BK Qnt by NAAT, Plasma IU/mL 32284-2
3006092 BK Qnt by NAAT, Plasma log IU/mL 44805-0
3006093 BK Qnt by NAAT, Plasma Interp 32362-6
* 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
  • BK (Polyoma) Virus
  • BK Virus
  • BKV
  • Molecular Detection
  • transplant
  • Viral load monitoring
BK Virus by Quantitative NAAT, Plasma