Rubella Antibodies (IgG, IgM) Test
This test measures two types of antibodies to rubella virus, sometimes called German Measles, in a serum sample: IgG and IgM.
About this test
This test measures two types of antibodies to rubella virus — sometimes called German Measles — in a 1 mL serum sample analyzed by immunoassay. IgG antibodies reflect past exposure or successful immunization, while IgM antibodies appear within certain time windows after infection, vaccination, or in congenital cases.
Quest notes the test may be used to check for a positive IgG result indicating past exposure or successful immunization, or to compare acute and convalescent IgG titers for a rise in antibody index.
Test details
| Collection | Quest patient service center |
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Quest resources
Additional details
What this test looks at
The test reports IgG and IgM antibody levels to rubella virus separately. IgG reflects past exposure or immunization; IgM is read within the time windows Quest associates with recent infection, vaccination, or congenital cases.
This test isn't part of the Celio Health store at the moment, so it can't be ordered or requested here. The test menu lists everything that can.
Laboratory results should always be interpreted by a licensed clinician who knows your health history. This page is information about a test, not medical advice.
Frequently asked questions
What does this test measure?
IgG and IgM antibodies to rubella virus in a serum sample, analyzed using immunoassay methodology.
How is the sample collected?
The test uses a 1 mL serum sample from a routine blood draw.
Do I need to prepare for this test?
No preparation instructions are listed for this test, though people follow any instructions their ordering clinician provides.
What is the difference between the IgG and IgM results?
IgG reflects past exposure or successful immunization, while IgM appears within certain time windows after infection, vaccination, or in congenital cases.
Is rubella also known by another name?
Yes. Quest lists rubella by its common name, German Measles, which it describes as a usually benign viral infection of children.