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HelpTest Code PVIGM Parvovirus B 19 Antibody, IgM
Clinical Indications
Not recommended as a stand-alone test. Parvovirus B19 Antibodies, IgG and IgM is preferred.
Additional Test Codes
Epic Order Name:
Sunquest Order Code: PVIGM
Epic Px Code: LAB
Specimen Collection Type
Gold-top serum (preferred)
Red-top serum
Lavender-top EDTA plasma
Green-top (sodium or lithium heparin) plasma
Minimum Collection Volume
0.75 mL
Reference Range
0.89 IV or less: Negative – No significant level of
detectable Parvovirus B19 IgM 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.
Critical Value
N/A
Interpretation
The best evidence for current infection is a significant change
on two appropriately timed specimens, where both tests are done in
the same laboratory at the same time.
Appearance of an IgM antibody response normally occurs 7 to 14 days
after the onset of disease. Testing immediately post-exposure is of
no value without a later convalescent specimen. A residual IgM
response may be distinguished from early IgM response to infection
by testing sera from patients three to four weeks later for
changing levels of specific IgM antibodies.
Rejection Criteria
Contaminated, heat-inactivated, hemolyzed, hyperlipemic, or icteric specimens
Specimen Availability for Add-on Testing
2 days
Specimen Stability
Refrigerated (preferred): 2 weeks
Ambient: 48 hours
Frozen: 1 year
Day(s) Performed
Sun-Sat
Performing Lab - Department
TUKHS-BH-Mail Outs
CPT Code
86747
LOINC Code
5274-6
Test Alias
B19 IgM Antibodies
Erythrovirus B19 IgM
Human Parvovirus B19 IgM
Additional Information / Notes
Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Mark specimens plainly as “acute” or “convalescent.”