BK Virus Quantitation, Real-time DNA PCR

CPT: 87799
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Test Details


  • Polyomavirus BK Quantitation
  • Quantitation of BK Virus, DNA, Using Real-time PCR


Detection and quantitation of BK virus plasma or serum specimens as an aid in the diagnosis and management of BK virus infections


Quantitative range is 200−10,000,000 copies/mL.

Cross-reactivity with the related Simian virus SV40 may occur; SV40 is not a human pathogen.


Real-time polymerase chain reaction (PCR)

Specimen Requirements


Plasma or serum


1 mL

Minimum Volume

0.5 mL


Ship in a screw-cap polypropylene frozen transport tube.


Collect specimen in lavender-top (EDTA) tube, yellow-top (ACD) tube, plasma preparation tube (PPT™), red-top tube, or gel-barrier tube. Centrifuge specimen within 24 hours of collection, remove serum or plasma, transfer specimen to polypropylene screw-capped tube, and freeze. Ship frozen. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.

Storage Instructions

Freeze (preferred) or refrigerate.

Stability Requirements



Room temperature



7 days


90 days

Causes for Rejection

Quantity not sufficient for analysis; leaking or broken tube; inadequate storage or transport; whole blood


Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
138962 BK Quant PCR (Plasma/Serum) 139184 BK Quantitation PCR copies/mL 41479-7
138962 BK Quant PCR (Plasma/Serum) 139237 log10 BK Qn PCR log10copy/mL 44805-0

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