The analysis of Cytomegalovirus IgG antibodies (Cytomegalovirus IgG - CMV IgG, Serum) is a laboratory test used to determine the presence of antibodies to cytomegalovirus in the blood. This virus is common and often infects individuals without causing obvious symptoms. The results of this test help assess whether a person has been previously exposed to the virus, reflecting their immune status. This test is particularly recommended for pregnant women, as the virus can affect the fetus, as well as for individuals with weakened immune systems. This information can contribute to guiding appropriate treatments and healthcare management.