EMERGENCY CALL 
Description:
The Cytomegalovirus (CMV) IgM Test is a blood test used to detect IgM antibodies against Cytomegalovirus (CMV), indicating a recent or active infection. It is often used in combination with the CMV IgG test to determine the timing of infection.
Key Points:
IgM positive → Suggests a recent or active CMV infection (confirmatory testing may be needed).
IgM negative → No recent CMV infection, but past infection is possible (check IgG levels).
Often used in pregnancy screening, transplant evaluations, and immunocompromised patient monitoring.
Importance:
In pregnant women, a recent CMV infection can lead to congenital CMV, which may cause birth defects.
In immunocompromised individuals, CMV reactivation can cause serious complications (e.g., pneumonia, retinitis, organ damage).
Helps guide treatment decisions and infection control measures in high-risk patients.
