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HelpCatalog ID CMV IgG CMV IgG
CPOE Test Name
CMV IgG
Synonyms
CMV titer; cytomegalovirus titer; cytomegalovirus antibody
Specimen Type
Serum
Specimen Requirements
Gold Top serum separator tube; 2 mL blood
Storage and Transport
Separated serum may be stored at 2 – 8° C for up to 5 days. If longer storage is required, specimens should be frozen at -20° C (but only once); avoid repeated freezing and thawing.
Causes for Rejection
Improper labeling; heat-treated serum; lipemia; gross hemolysis; serum with microbial contamination
Reference Range
Negative: No previous exposure
Positive: Exposure at some undetermined time in the past
Interpretation
Patients determined to be ’’Negative’’ for CMV IgG antibody are considered susceptible to primary CMV infection.
Patients determined to be ’’Positive’’ for CMV IgG antibody are considered to have had CMV infection in the past or are currently infected. Such individuals are potentially at risk of transmitting CMV infection but are not necessarily currently contagious.
Turn Around Time
5 business days
Methodology
Enzyme-linked fluorescent immunoassay
CPT / HCPCS Code
86644
Performing Lab
Immunology Lab BI 2011 721-3378