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Polymerase Chain Reaction (PCR)
The QBKV assay is intended to measure BK viral load in patient plasma.
Reportable Range: Log10 2.1 (126 copies/mL) to Log10 7.8 (62,800,000 copies/mL)
Virus that is detectable at levels above or below the reportable range will be reported but not quantified.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Collect specimen in a 6 ml lavender top (EDTA) tube. Centrifuge for 20 minutes at 800-1600 xg at room temperature and aliquot plasma into a polypropylene plastic vial within 24 hours of collection. Refrigerate plasma at 2-8 C for up to 5 days or freeze at -70 C for up to 2 weeks. Do not allow frozen specimens to thaw at any time during storage or transport, due to possible degradation of the viral load. Microbiology molecular testing requires a dedicated sample, and cannot be shared with other laboratories.