Herpesvirus 7 (HHV-7) DNA, Quantitative Real-Time PCR

Message

Must provide specimen source at order

Test Code

HHV7PCRQT

Quest Code

19727

Alias/See Also

19727

CPT Codes
87799

Preferred Specimen

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

Minimum Volume

0.3 mL

Instructions

Do not freeze whole blood

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

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

All other specimens
Room temperature: 48 hours
Refrigerted: 7 days
Frozen: 30 days

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

Sodium heparin (green-top) tube • Lithium heparin (green-top) tube

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

Set up: Mon-Sat; Report available: 1-2 days

Reference Range

Herpesvirus 7 DNA, QN RT PCR	Not Detected (copies/mL)
Herpesvirus 7 DNA, QN RT 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 cause reactivation in transplant patients or other immune-compromised individuals. PCR may detect infection earlier than immunologial 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.

Performing Laboratory

Quest Diagnostics Nichols Institute

33608 Ortega Highway

San Juan Capistrano, CA 92675-2042

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.