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HelpTest Code CMVQN Cytomegalovirus (CMV) DNA Detection and Quantification by Real-Time PCR, Plasma
Additional Codes
CNE Order Code: CMVDNAQuant
Shipping Instructions
1. Ship specimen frozen on dry ice only.
2. If shipment will be delayed for more than 24 hours, freeze plasma at -20 to -80° C (up to 84 days) until shipment on dry ice.
Specimen Required
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Collection Container/Tube: Lavender top (EDTA)
Submission Container/Tube: Plastic vial
Specimen Volume: 1.5 mL
Collection Instructions:
1. Centrifuge blood collection tube per manufacturer's instructions (eg, centrifuge within 2 hours of collection for BD Vacutainer tubes).
2. Aliquot plasma into plastic vial.
Forms
If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:
-Microbiology Test Request (T244)
-Renal Diagnostics Test Request (T830)
-General Test Request (T239)
Useful For
Detection and quantification of cytomegalovirus (CMV) viremia
Monitoring CMV disease progression and response to antiviral therapy
Method Name
Real-Time Polymerase Chain Reaction (RT-PCR)
Reporting Name
CMV DNA Detect/Quant, PSpecimen Type
Plasma EDTASpecimen Minimum Volume
0.6 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Plasma EDTA | Frozen (preferred) | 84 days | |
| Refrigerated | 6 days |
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | OK |
Reference Values
Undetected
Interpretation
The quantification range of this assay is 35 to 10,000,000 IU/mL (1.54 log to 7.00 log IU/mL), with a 95% or higher limit of detection at 35 IU/mL.
A result of "Undetected" indicates the absence of cytomegalovirus (CMV) DNA in the plasma (see Cautions below).
A result of "<35 IU/mL (<1.54 log IU/mL)" indicates that CMV DNA is detected in the plasma, but the assay cannot accurately quantify the CMV DNA present below this level.
A quantitative value (reported in IU/mL and log IU/mL) indicates the level of CMV DNA (ie, viral load) present in the plasma.
A result of ">10,000,000 IU/mL (>7.00 log IU/mL)" indicates that CMV DNA level present in plasma is above 10,000,000 IU/mL (7.00 log IU/mL), and the assay cannot accurately quantify CMV DNA present above this level.
Day(s) Performed
Monday through Saturday
Report Available
1 to 5 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
87497
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| CMVQN | CMV DNA Detect/Quant, P | 72493-0 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 601954 | CMV DNA Detect/Quant, P | 72493-0 |