JC Polyoma Virus DNA, Quantitative Real-Time PCR, Serum or Plasma [19503X]

Test Code

CPT Codes

Preferred Specimen
0.7 mL serum, or
0.7 mL plasma collected in an EDTA (lavender-top) tube, or ACD solution A (yellow-top) tube, or PPT (white-top) tube

Minimum Volume
0.3 mL

Transport Container
Plastic screw-cap vial

Transport Temperature

Specimen Stability
Room temperature: 48 hours
Refrigerated: 7 days
Frozen: 30 days

Real-Time Polymerase Chain Reaction (RT-PCR)

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule
Set up: Daily; Report available: Next day

Reference Range
<500 copies/mL

Clinical Significance
JC Virus is the cause of Progressive Multifocal Leukoencephalopathy (PML), a severe demyelinating disease of the central nervous system. PML is a particular concern for individuals infected with the human immunodeficiency virus. Quantification of JC virus DNA is based upon the real-time PCR amplification and detection of JCV genomic DNA. The quantitative range of this assay is 500-35,000,000 JCV DNA copies/mL.

Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Dr
Chantilly, VA 20153

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.