HealthWise KnowledgeBase
Rubella Test
Results
A Reference rubella Opens New Window blood test detects Reference antibodies Opens New Window that are made by the Reference immune system Opens New Window to help kill the rubella virus. The test for IgG antibodies is most common and is the test done to see if a woman who is pregnant or planning to get pregnant is immune to rubella.
The normal values listed here—called a reference range—are just a guide. These ranges vary from lab to lab, and your lab may have a different range for what's normal. Your lab report should contain the range your lab uses. Also, your doctor will evaluate your results based on your health and other factors. This means that a value that falls outside the normal values listed here may still be normal for you or your lab.
| Positive: |
More than 10 Reference international units per milliliter (IU/mL) Opens New Window IgG antibodies. A positive rubella IgG test result is good—it means that you are immune to rubella and cannot get the infection. This is the most common rubella test done. |
|---|---|
| Negative: |
Less than 7 IU/mL IgG antibodies and less than 0.9 IgM antibodies. This means you are not immune to rubella. If you are a woman thinking about getting pregnant, talk with your doctor about getting a rubella vaccine before pregnancy. |
A test for rubella IgM antibodies is done only if the doctor suspects you have a current rubella infection. More than 1.1 IU/mL IgM antibodies means you had a recent rubella infection or you have a current infection.Reference 1
| By: | Reference Healthwise Staff | Last Revised: Reference August 31, 2012 |
| Medical Review: | Reference John Pope, MD - Pediatrics
Reference W. David Colby IV, MSc, MD, FRCPC - Infectious Disease |
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