A Cytomegalovirus (CMV) IgM test is performed to detect the presence of immunoglobulin M (IgM) antibodies against the CMV virus in the blood. These antibodies are produced by the body’s immune system in response to a recent or ongoing CMV infection.
The benefits of getting a CMV IgM test include:
Diagnosis of acute or recent CMV infection: The test is useful in detecting primary CMV infections or recent reactivation of the virus in individuals with weakened immune systems.
Monitoring CMV infection in pregnant women: CMV infection during pregnancy can cause complications such as hearing loss, vision impairment, and developmental delays in the baby. The CMV IgM test can help in detecting an active CMV infection during pregnancy, allowing for appropriate treatment and monitoring.
Evaluation of transplant patients: Transplant patients are at an increased risk of CMV infection due to their suppressed immune system. The CMV IgM test is useful in detecting a recent or ongoing CMV infection in these patients, allowing for appropriate treatment and management.
Screening blood donors: Blood banks may screen donors for CMV IgM antibodies to prevent transmission of the virus through blood transfusions.
It is important to note that a positive CMV IgM test result may indicate an acute or recent CMV infection but cannot determine the duration or severity of the infection. Further testing may be needed to confirm the diagnosis and guide treatment.