Post-Transplant, Herpesvirus 7 DNA, Real-Time PCR, Blood

Test Code

18078

CPT Codes
87799

Preferred Specimen

1 mL whole blood collected in an EDTA (lavender-top) tube

Minimum Volume

0.5 mL

Instructions

For Shipper collection please see detailed instructions in Test Resources

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

Room temperature: 48 hours
Refrigerated: 7 days
Frozen: Unacceptable

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Samples collected in sodium or lithium heparin

Methodology
Real-Time Polymerase Chain Reaction

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 FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule

Monday-Sunday Morning Report available: Next Day

Reference Range

Herpesvirus 7 DNA, QN PCR	Not Detected (copies/mL)
Herpesvirus 7 DNA, QN PCR	Not Detected (Log copies/mL)

Clinical Significance

This test is used in the diagnosis of human herpesvirus 7 infection. HHV-7 is closely related to HHV-6 and CMV and can reactivate in transplant patients or other immune-compromised individuals. PCR may detect infection earlier than immunological methods and provides more rapid results than culture, but does not provide information on past exposure or immunity. Quantitative measurement may provide information on disease regression. Reportable range is 500 to 10,000,000 copies/mL (2.70 to 7.00 Log copies/mL).

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.