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Test Code PARVN Parvovirus B19 Antibody, Technical Interpretation

Reporting Name

Parvovirus B19 Ab Interpretation

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Useful For

Interpretation of serologic testing for recent or past parvovirus B19 infection

 

This test is not useful as a screening procedure for the general population

Method Name

Only orderable as part of a profile. For more information see PARVS / Parvovirus B19 Antibodies, IgG and IgM, Serum.

 

Technical Interpretation


Specimen Required


Only orderable as part of a profile. For more information see PARVS / Parvovirus B19 Antibodies, IgG and IgM, Serum.

 

Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL

Collection Information: Centrifuge and aliquot serum into a plastic vial.


Specimen Type

Serum

Specimen Minimum Volume

See Specimen Required

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Refrigerated (preferred) 14 days
  Frozen  14 days

Reference Values

Only orderable as part of a profile. For more information see PARVS / Parvovirus B19 Antibodies, IgG and IgM, Serum.

 

IgG: Negative

IgM: Negative

Interpretation

Parvovirus B19 IgM

Parvovirus B19 IgG

Interpretation

Negative

Negative

No antibody to parvovirus B19 detected. Acute infection cannot be ruled out as antibody levels may be below the limit of detection. If clinically indicated, a second serum should be submitted in 14 to 21 days.

Negative

Positive

Results suggest past infection.

Equivocal

Positive or negative

Recommend follow-up testing in 10 to 14 days if clinically indicated.

Positive

Positive, negative, or equivocal

Results suggest recent infection and should be interpreted in the context of clinical presentation.

 

The presence of IgM class antibodies suggests recent infection. The presence of IgG antibodies only is indicative of past exposure.

 

Both IgG and IgM may be present at or soon after onset of illness and reach peak titers within 30 days. Because IgG antibody may persist for years, diagnosis of acute infection is made by the detection of IgM antibodies.

Day(s) Performed

Monday through Friday

Report Available

Same day/1 to 3 days

Test Classification

Not Applicable

LOINC Code Information

Test ID Test Order Name Order LOINC Value
PARVN Parvovirus B19 Ab Interpretation 58737-8

 

Result ID Test Result Name Result LOINC Value
PARVN Parvovirus B19 Ab Interpretation 58737-8