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Parvovirus B19 DNA

Item Value
Approval req'd? No
Available Stat? No
Test code P338
Test group Parvovirus
Performed by Viracor
Sendout? Yes
Method Quantitative real time PCR
Container type
Blood or marrow Lavender top
Amniotic fluid Sterile tube
Amount to Collect
Blood 3 mL
Bone Marrow 1 mL
Amniotic fluid 1 mL
Sample type EDTA plasma, amniotic fluid, bone marrow (acceptable but plasma preferred)
Preferred volume
Plasma 1 mL
Amniotic fluid 1 mL
Bone marrow 1 mL
Min. Volume
Plasma 0.5 mL
Amniotic fluid 0.5 mL
Bone marrow 0.5 mL
Processing notes Blood:Centrifuge blood and transfer plasma to a sterile tube. Freeze at -70C and ship to ViraCor on dry ice.

Amniotic fluid: Freeze at -70C and ship to ViraCor on dry ice.

Bone marrow: Store and ship to ViraCor at room temperature. Do not centrifuge or freeze. Specimen must be received at ViraCor within 96 hrs of collection.

ViraCor test code: 1500
Units IU/mL

Note: 1 IU = 0.73 copies/mL
Normal range Not detected
Critical value Positive result, unless patient has a previous positive result in the prior 3 months.
Synonyms Parvovirus PCR; Parvovirus B19 PCR
Stability Room temperature 4 days, plasma or amniotic fluid frozen at -70C 1 month.
Turn around times 1-3 days after receipt by reference laboratory.
Additional information Performed upon blood to determine whether parvovirus infection is the cause of anemia in patients who have an unexplained marked decrease in erythroid precursor cells in bone marrow or a low peripheral reticulocyte count.

The test may also be performed upon amniotic fluid to determine whether parvovirus infection
in pregnancy is the cause of hydrops fetalis.

Detects the presence of Parvovirus B19 in cell free plasma by amplifying viral genomic DNA through Real Time PCR technology.

This assay was developed and the performance characteristics were determined at ViraCor. This test is not FDA approved; however, the test is performed in a CLIA certified laboratory and approval from the FDA is not required.

Specimens are processed and results reported by Microbiology.
CPT coding 87799-90
LOINC code 49432-8
Last Updated 5/22/2013 11:56:33 AM
Entry Number 728
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