Parvovirus B19 Antibody, IgG


Sunquest Code:PARVG  
Epic Code:LAB6038Epic Name:Parvovirus B19 Antibody IgG
Methodology:Enzyme-linked immunosorbent assay
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat; results are reported in 3 days.
Special Instructions:Parallel testing is preferred. Label samples as acute or convalescent. Convalescent specimens must be received within 30 days from receipt of the acute specimens.


Collection Instructions

Specimen:Blood
Optimal Volume:1 mL
Minimum\Peds Volume:0.8 mL
Container:Red or gold (gel) (Red (no gel))
Causes for Rejection:Lipemic, hemolyzed or icteric specimens.


Processing and Shipping

Specimen Processing:Within 2 hours of collection, centrifuge ASAP and aliquot 0.5 mL, 0.3 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Stability:After separation from cells: 48 hours at room temperature; 2 weeks refrigerated, 1 year frozen.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:65121 (PARVO G)


Interpretive

Reference Range:
0.90 IV or less Negative - No significant level of detectable Parvovirus B19 IgG antibody
0.91-1.09 IV Equivocal - Repeat testing in 7-21 days may be helpful.
1.10 IV or greater Positive - IgG antibody to Parvovirus B19 detected which may indicate a current or past infection.
Seroconversion between acute and convalescent sera is considered strong evidence of current or recent infection. The best evidence for infection is a significant change on two appropriately timed specimens, where both tests are done in the same laboratory at the same time.  


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