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Toxoplasma Antibody (IgG) [3679]
MessageFor Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.
Test Code
TOXOPG
Alias/See Also
3679;
TOXO (Serum)- Please note: An order for "Tox" must be called
TOXO (Serum)- Please note: An order for "Tox" must be called
CPT Codes
86777
Preferred Specimen
1 mL serum
Minimum Volume
0.5 mL
Transport Container
Plastic screw-cap vial
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 4 days
Refrigerated: 7 days
Frozen: 30 days
Refrigerated: 7 days
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis, grossly lipemic
Methodology
Immunoassay (IA)
Setup Schedule
Tues, Thurs, Sat
Report Available
2 - 5 days
Limitations
During reactivation, an IgM response may not occur, or be present at levels too low to be detected.
Reference Range
| IU/mL | Interpretation |
| <7.20 | Negative |
| 7.20-8.79 | Equivocal |
| >8.79 | Positive |
Clinical Significance
Toxoplasmosis is a parasitic infection caused by the protozoan Toxoplasma gondii. Approximately 23% of the immunocompetent population are asymptomatic carriers of the parasite. High titers of IgG antibodies to Toxoplasma gondii can persist for years. Rising IgG titers after birth, in the absence of a placental leak, are consistent with neonatal infection.
Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153
Last Updated: April 19, 2023
