Parvovirus B19 Antibodies, IgG and IgM


Sunquest Code:PRVAB  
Epic Code:LAB800Epic Name:Parvovirus B19 Antibodies, IgG and IgM
Synonyms:Fifth Disease; PRVAB
Methodology:Enzyme-linked immunosorbent assay
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat; results are reported in 1-3 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 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:65120


Interpretive

Reference Range:
Parvovirus B19, IgG
0.90 IV or less Negative: No significant level of detectable 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.
   
Parvovirus B19, IgM
0.90 IV or less Negative: No significant level of detectable antibody.
0.91-1.09 IV Equivocal: Repeat testing in 10-14 days may be helpful.
1.10 IV or greater Positive: IgM antibody to Parvovirus B19 detected which may indicate a current or recent infection. However, low levels of IgM antibodies may occasionally persist for more than 12 months post-infection.
   


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