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Post-Transplant, Herpesvirus 7 DNA, Real-Time PCR, Plasma
Test Code18076
CPT Codes
87799
Preferred Specimen
1 mL plasma 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: 30 days
Refrigerated: 7 days
Frozen: 30 days
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
Set up: Daily; Report available: 1 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).