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HelpCatalog ID VZV IgM Varicella-Zoster Virus Antibody, IgM
Additional Codes
CPOE: Ref Varicella-Zoster Virus Antibody, IgM
DOE: Ref VZV IgM
CPT Code
86787
Specimen
Gold SST tube, collect 2.0 mL blood
Centrifuge within 2 hours of collection
Serum, 1.0 mL (0.2 mL minimum), refrigerated
Rejection Criteria
Plasma, urine, bacterially contaminated specimens, heat-inactivated specimens, hemolyzed specimens, icteric specimens, lipemic specimens, turbid specimens, insufficient quantity, unlabelled specimens, specimens not centrifuged <2 hours from collection, specimens at room temperature >48 hours
Interpretative Information
Detectable varicella-zoster virus IgM antibody is indicative of current or recent infection. However, low levels of IgM antibodies may occasionally persist for more than 12 months post-infection or immunization.
Performing Lab
ARUP Laboratories
Turn-Around-Time
1-5 days
Reference Values
0.90 ISR or less: Negative - No significant level of detectable varicella-zoster virus IgM antibody.
0.91-1.09 ISR: Equivocal - Repeat testing in 10-14 days may be helpful.
1.10 ISR or greater: Positive - Significant level of detectable varicella-zoster virus IgM antibody. Indicative of current or recent infection.