What does rubella IgM non reactive means?
What does rubella IgM non reactive means?
A reactive result is consistent with immune status to rubella virus. Non-reactive and equivocal results flag as abnormal in Epic which indicates non-immune or equivocal immune status to rubella. A non-reactive result does NOT imply rubella infection.
What is the difference between rubella IgG and IgM?
The presence of IgM rubella antibodies in the blood indicates a recent infection while the presence of IgG antibodies may indicate a recent or past rubella infection, or indicate that a rubella vaccine (a measles, mumps, rubella vaccine) has been given and is providing adequate protection.
What does an equivocal rubella test mean?
Individuals testing positive are considered immune to rubella infection. Equivocal: AI value 0.8-0.9. Submit an additional sample for testing in 10 to 14 days to demonstrate IgG seroconversion if recently vaccinated or if otherwise clinically indicated. Negative: AI value of 0.7 or lower.
How do you read rubella IgM results?
Here’s how your IgG test results stack up:
- A positive test is 1.0 or higher. That means you have rubella antibodies in your blood and are immune to future infection.
- A negative test is 0.7 or lower. You have too few antibodies to make you immune. If you have any, they can’t be detected.
What happens if rubella is positive?
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.
Is rubella good or bad?
A rubella infection is mild for most people, but it can have catastrophic consequences for an unborn baby. If a pregnant woman contracts rubella, her baby is at risk of severe and permanent birth defects or death. Rubella is sometimes called German measles, but rubella is a different viral disease to measles.
What is the normal range of rubella IgM?
Reference Interval
| 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. |
How do I know if I have rubella immune?
A rubella blood test detects antibodies that are made by the immune system 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.
What does rubella IgM positive mean?
The presence of IgM antibodies means a current or recent infection. A person has been vaccinated against rubella. The presence of IgG antibodies means immunity received through either vaccination or a past infection. Health professionals who are in contact with pregnant women have had rubella.
How long does rubella IgM stay positive?
IgM antibodies become detectable in a few days after the onset of signs and symptoms and reach peak levels in seven to ten days. These antibodies persist, but rapidly diminish in concentration over the next four to five weeks until the antibody is no longer clinically detectable.
What does it mean if rubella IgG is positive?
What happens if rubella IgG is high?
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.