How do you interpret CMV results?
A positive test for CMV IgG indicates that a person was infected with CMV at some time during their life but does not indicate when a person was infected. This applies for persons ≥12 months of age when maternal antibodies are no longer present.
What does a high CMV IgG mean?
Also, if your IgM and IgG levels are high, it may mean you have CMV. Your healthcare provider will likely give you the test again in 2 weeks to confirm the infection. If your IgG levels rise between the first and second test, that may mean you have an active infection.
What is CMV IgG positive in pregnancy?
Testing for CMV infection is a simple blood test, called a CMV IgG antibody. It will determine if a pregnant woman has had CMV. A positive result indicates a current or past CMV infection. A second blood test, called CMV IgM antibody will help determine if the CMV infection is current or past.
What does CMV status mean?
When no IgM antibodies are present, but IgG antibodies are present, a person is CMV positive. This means that he/she has had a CMV infection in the past but does not have an acute infection. When IgM and IgG antibodies are present, there is an acute infection.
What is CMV status?
CMV status is determined based on a serologic study (a test that looks for the presence of antibodies in the blood). The initial screening test is a “total antibody test”. Anybody who has ever been infected with CMV will have a positive total antibody test.
How long CMV IgG stay positive?
CMV IgM antibody in some women may remain positive for over 4 months (sometimes up to a year or more) or may be a false positive result. Therefore, a third CMV antibody test may be performed, called CMV IgG avidity index.
How does CMV affect pregnancy?
Some babies with congenital CMV infection have health problems that are apparent at birth or that develop later during infancy or childhood. In the most severe cases, CMV can cause the death of an unborn baby (pregnancy loss). Some babies with congenital CMV infection have signs at birth.
What is the clinical interpretation test?
CLINICAL INTERPRETATION. CMV DNA viral load testing is an important aid for assessing risk of disease, diagnosing disease, and monitoring response to therapy. The interpretation of CMV DNA viral load values can be complex, and numerous virus and host factors should be considered when assessing the risk of CMV disease.
What is the liaison® CMV IgM assay used for?
The LIAISON® CMV IgM assay is intended to be used as an aid in the diagnosis of acute CMV infection. Test results are reported qualitatively together with a clinical interpretation based on the status of both IgM and IgG.
What is a CMV test?
CMV testing detects antibodies in the blood that the body produces in response to the infection or detects CMV directly. In the United States, as many as 60% of people have been exposed to CMV at some point in their life.
What is the CPT code for CMV?
not present Lab Order Codes: CMV Synonyms: Anti-CMV Antibodies-IgG and IgM ; CMV Se Antibodies CPT Codes: 86644 – CMV antibodies (IgG) 86645 – CMV antibodies (IgM)