CPT Code(s)

86644

Methodology

Immunoassay (IA)

Limitations

False-positive IgM test results may be due to the presence of heterophil antibodies or presence of rheumatoid factor.

Reference Range(s)

Clinical Significance

CMV infections are common and usually asymptomatic. In patients who are immunocompromised, CMV may cause disseminated, severe disease. CMV may cause birth defects in a minority of infected newborns. Antibody IgG may represent prior exposure or recent infection if there is a significant change in titer between acute and convalescent specimens.

Alternative Name(s)

CMV IgG Ab,CMV Antibody IgG