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HelpCatalog ID Rubella IgM Rubella Antibody, IgM
Additional Codes
CPOE: Ref Rubella Antibody, IgM
DOE: Ref Rubella IgM
CPT Code
86762
Specimen
Gold SST tube, collect 2.0 mL blood
Serum, 1.0 mL (0.5 mL minimum), refrigerated
Rejection Criteria
Plasma, urine, contaminated specimens, heat-inactivated specimen, grossly hemolyzed specimens, specimens at room temperature >48 hours, insufficient quantity, unlabelled specimen
Interpretative Information
Testing immediately post-exposure is of no value without a later convalescent specimen. While the presence of IgM antibodies suggests current or recent infection, low levels of IgM antibodies may occasionally persist for more than 12 months post-infection or immunization.
Performing Lab
ARUP Laboratories
Turn-Around-Time
Within 24 hours from ARUP Laboratories specimen receipt
Reference Values
| Result | Interpretation |
| 19.9 AU/mL or less | Not Detected |
| 20.0 - 24.9 AU/mL | Indeterminate - Repeat testing in 10-14 days may be helpful. |
| 25.0 AU/mL or greater | Detected - IgM antibody to rubella detected, which may indicate a current or recent infection or immunization. |