Rubella Virus - IgM
Understanding Rubella Virus - IgM
What is Rubella Virus - IgM?
Rubella virus IgM test is done to detect a recent infection of the virus. IgM antibodies are the first type of antibodies produced by the body in response to the infection. Therefore this test helps in early diagnosis of the infection. Rubella is a viral infection that lasts about 2-3 days, hence is also known as 3-day measles test.
A rubella test may be ordered for a person experiencing symptoms of mild fever, stuffy nose, and red rashes. In case of pregnant women, this infection can cause miscarriage, stillbirth, or congenital rubella syndrome.
Rubella virus testing is commonly advised as a part of prenatal testing as well.
What is Rubella Virus - IgM used for?
Rubella Virus - IgM test is done:
As a screening test in pregnancy
In case of symptoms of rubella such as fever and rash
In the case of newborns showing abnormal signs of development or birth defects
To detect recent or past rubella infection
Interpreting Rubella Virus - IgM results
Interpretations
Result in AU/mL | Avidity |
< 20.0 | Non reactive |
20.0 - 25.0 | Equivocal |
> 25.0 | Reactive |
Reference range may vary from lab to lab*