Prenatal Infectious Disease Antibodies, Quantitative, IgG

CPT: 86644; 86695; 86696; 86762; 86777
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Test Details

Test Includes

Index results for antibody levels to cytomegalovirus, herpes simplex 1, herpes simplex 2, rubella, Toxoplasma


Detect TORCH antibodies; aid in the diagnosis of congenital infection


Chemiluminescent immunoassay (CLIA)

Reference Interval

See individual tests.

Additional Information

Toxoplasma, rubella, cytomegalovirus, and herpes are all causes of potentially catastrophic congenital infections, which can be quickly fatal or lead to chronic sequelae, including hepatitis, encephalitis, and failure to thrive. Demonstration of IgM antibody or rising titers of IgG antibody can confirm a diagnosis of specific infection. The availability of IgM-specific assays also determines whether antibody in cord blood represents passive transfer from the mother (IgG antibody) or signifies congenital infection (IgM antibody).

Specimen Requirements




1 mL

Minimum Volume

0.5 mL


Red-top tube or gel-barrier tube

Storage Instructions


Causes for Rejection

Hemolysis; lipemia; gross bacterial contamination


Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
038120 Prenat Infect Dis Ab, IgG, Qn 006204 Rubella Antibodies, IgG index 5334-8
038120 Prenat Infect Dis Ab, IgG, Qn 006483 Toxoplasma gondii Ab,IgG,Qn IU/mL 5388-4
038120 Prenat Infect Dis Ab, IgG, Qn 006499 Cytomegalovirus (CMV) Ab, IgG U/mL 5124-3
038120 Prenat Infect Dis Ab, IgG, Qn 163155 HSV 2 IgG, Type Spec index 5209-2
038120 Prenat Infect Dis Ab, IgG, Qn 164903 HSV 1 IgG, Type Spec index 5206-8

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