A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Measles Antibody (IgG), Immune Status
Test CodeRUBEG
Quest Code
964
Alias/See Also
Rubeola
CPT Codes
86765
Preferred Specimen
1 mL serum collected in a red-top tube (no gel)
Minimum Volume
0.5 mL
Other Acceptable Specimens
SST Gold 5ml
Transport Container
Plastic screw-cap vial
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 4 days
Refrigerated: 7 days
Frozen: 30 days
Refrigerated: 7 days
Frozen: 30 days
Methodology
Immunoassay (IA)
Setup Schedule
Set up: Tues-Sat; Report available: Next day
Reference Range
AU/mL | Interpretation |
<13.50 | Not consistent with immunity |
13.50-16.49 | Equivocal |
>16.49 | Consistent with immunity |
Clinical Significance
Measles, also known as rubeola, causes fever, irritability, respiratory illness, and the characteristic skin rash. Immunization has greatly diminished the incidence of measles. The presence of IgG is consistent with immunity or prior exposure. IgM is consistent with current or recent infection. IgM tests can generate false positive results and low levels of IgM can persist for longer than 12 months.
Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153
Last Updated: August 7, 2023