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Lab Manual for Moffitt-Long and Mount Zion

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Parvovirus B19 Antibodies

Item Value
Approval req'd? Yes, contact Immunology at x3-1712
Available Stat? No
Test code PB19
Test group Parvovirus
Performed by Quest
Sendout? Yes
Method EIA
Container type Red top
Amount to Collect 2 mL blood
Sample type Serum
Preferred volume 1 mL serum
Min. Volume 0.2 mL serum
Processing notes Freeze at -20C. Order Nichols test number 14050N.
Units Index
Normal range
Negative < 0.9 index
Equivocal 0.9-1.1 index
Positive > 1.1 index
Room temperature 4 days, refrigerated 1 week, frozen at -20C 1 month.
Turn around times Test run Monday-Saturday. Turnaround 2-6 days
Additional information Clinical use is as an aid in the diagnosis of parvovirus infections. Results from any one IgM assay should not be used as a sole determinant of a current or recent infection. Because IgM tests can yield false positive results and low levels of IgM antibody may persist for months post infection, reliance on a single test result could be misleading. If an acute infection is suspected, obtain a new specimen and submit for both IgG and IgM testing in two or more weeks. IgG persists for years and provides life-long immunity. To diagnose current infection, the laboratory recommends Parvovirus, PCR test.
LOINC code 5272-0
Last Updated 10/2/2010 11:52:24 AM
Entry Number 729
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