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HelpTest Code PARVS Parvovirus B19 Antibodies, IgG and IgM, Serum
Additional Codes
CNE Order Code: Parvo B19 Ab
Ordering Guidance
This test is intended for patients with at least 7 days of symptoms or asymptomatic individuals with recent exposure to parvovirus B19.
For patients with acute, symptomatic presentation, order either PARVP / Parvovirus B19, Molecular Detection, PCR, Plasma or PARVO / Parvovirus B19, Molecular Detection, PCR, Varies.
Specimen Required
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.
Useful For
Serologic detection of recent or past parvovirus B19 infection
Profile Information
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| PARVG | Parvovirus B19 Ab, IgG, S | No | Yes |
| PARVM | Parvovirus B19 Ab, IgM, S | No | Yes |
| PARVN | Parvovirus B19 Ab Interpretation | No | Yes |
Reporting Name
Parvovirus B19 Ab, IgG and IgM, SSpecimen Type
SerumSpecimen Minimum Volume
See Specimen Required
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 14 days | |
| Frozen | 14 days |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
| Heat-inactivated specimen | Reject |
Reference Values
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 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
86747 x 2
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| PARVS | Parvovirus B19 Ab, IgG and IgM, S | 34950-6 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| PARVG | Parvovirus B19 Ab, IgG, S | 29660-8 |
| PARVM | Parvovirus B19 Ab, IgM, S | 40658-7 |
| PARVN | Parvovirus B19 Ab Interpretation | 58737-8 |
Forms
If not ordering electronically, complete, print, and send Infectious Disease Serology Test Request (T916) with the specimen.