Days Set Up
Monday - Friday
Analytic Time

8 hours

MiChart Code
Cmv IgG Antibody by EIA
Soft Order Code
CMVG

Test Updated:

Synonyms

CMVG
CMV IGG ANTIBODY TITER BY IFA
CMV Antibody IgG
CMV IGG Antibody
CMV Serology
CMVGE
CMVGT
Cytomegalovirus, IgG
Viral Antibody: Cytomegalovirus IgG
CMV IGG ANTIBODY BY EIA
Cytomegalovirus IgG, Qual
Torch Screen

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Test Overview

Test Methodology

Chemiluminescent Immunoassay

Test Usage

Support the diagnosis of Cytomegalovirus infection. The presence of IgG antibody generally indicates past exposure and immunity. The presence of IgM antibody indicates recent infection. Single IgG levels are not useful for supporting the diagnosis of an acute infection. Elevated levels in neonates should be followed up with studies to rule out the presence of maternal antibodies by demonstrating the absence of an IgM response.

Reference Range

NEGATIVE: no detectable IgG antibody to CMV; EQUIVOCAL: presence or absence of IgG antibody to CMV cannot be determined. Another specimen should be sent for analysis; POSITIVE: detectable levels of IgG antibody to CMV. Detectable levels of CMV antibody indicate previous exposure to CMV.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements

Offsite Collection Instructions

Collect specimen in an SST (preferred) or red top tube. Centrifuge, aliquot serum into a plastic vial and refrigerate.

Yellow Top Tube
Red Top Tube
Normal Volume
1 mL serum
Minimum Volume
0.3 mL serum

Billing Information

CPT Code
86644
Pro Fee Code
 
Insurance Auth Info
 
LOINC
20475-0

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.