Parvovirus B19 Antibodies, IgG and IgM


Sunquest Code:PRVAB  
Epic Code:LAB800Epic Name:Parvovirus B19 Antibodies, IgG and IgM
Order Instructions:If ordering IgG or IgM separately, request as LSMISC (see separate listings).
Synonyms:Fifth Disease; PRVAB
Methodology:Enzyme-linked immunosorbent assay
CPT Code:86747, 86747
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) (Green (lithium heparin, gel), Green (sodium heparin, no gel), Purple (EDTA), Red (no gel))
Causes for Rejection:Severely lipemic, hemolyzed or icteric specimens.


Processing and Shipping

Specimen Processing:Separate from cells within 2 hours of collection. Centrifuge and aliquot 0.5 mL, 0.3 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:65120 (PARVO)


Interpretive

Reference Range:

Parvovirus B19, IgG

0.89 IV or less

Negative: No significant level of detectable antibody.

0.90-1.10 IV

Equivocal: Repeat testing in 10-14 days may be helpful.

1.11 IV or greater

Positive: IgG antibody to Parvovirus B19 detected which may indicate a current or past infection.

 

 

Parvovirus B19, IgM

0.89 IV or less

Negative: No significant level of detectable antibody.

0.90-1.10 IV

Equivocal: Repeat testing in 10-14 days may be helpful.

1.11 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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