Toxoplasma IgG

Tube Type

Test ID   LAB501
EPIC Order
  Toxoplasma gondii Antibody, IgG
CPT Code(s)   86777
Group/Individual Test   Individual
Laboratory   Clinical Immunology
Tube Station   30
Specimen Routine: 2 mL blood/Serum Separator Tube/Gold Top
Availability Routine: Monday-Friday
Turnaround Time   1-3 Days
Reference Range   Negative

Specimens for Toxoplasma gondii IgG antibody testing are assayed with a qualitative assay, chemiluminescent immunoassay for the detection of IgG antibodies.    IgG antibodies generally appear 1-2 weeks after the infection, reach a peak in 6-10 weeks and persist at various levels for the rest of the life of the host.   This test is intended as an aid in assessment of serostatus to infection with T. gondii and immune status of pregnant women.  Results are reported as negative, positive or equivocal.  Repeat testing on a sample collected at least one to two weeks after the first equivocal results is recommended.    Toxoplasma IgM testing should be conducted in parallel with this IgG test.  The interpretation and recommended follow up testing are outlined in the following table:

*except infants

NCCLS. Clinical Use and Intrepretation of Serologic Tests for Toxoplasma gondii; Approved Guideline. NCCLS document M36-A [ISBN 1-56238-523-2.

Reviewed by jcayless on December 02, 2019

Note: Reference ranges provided on this web site are for guidance only, and may not reflect the most recent changes. Refer to laboratory reports for current reference data.

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514