Toxoplasma Antibody (IgG)
Test Summary
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.
Aliases
- TOXO (Serum)- Please note: An order for "
- Tox"
- must be called
Specimen Collection
Special Instructions
N/A
Preferred Specimen
1 mL serum
Minimum Volume
0.5 mL
Instructions
N/A
Patient Preparation
N/A
Storage
Plastic screw-cap vial
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 4 days
- Refrigerated: 7 days
- Frozen: 30 days
Limitations
During reactivation, an IgM response may not occur, or be present at levels too low to be detected.
Other Acceptable Specimens
N/A
Unacceptable Specimens
Gross hemolysis, grossly lipemic
Order Code
TOXOPG
EPIC (Premier) Code
LAB395
Includes
N/A
CPT Code
- 86777
Billing Code
- 700000
CPT Statement
Methodology
Immunoassay (IA)
FDA Status
FDA Approved
Physician Attestation of Informed Consent
N/A
Testing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly VA, 20153
14225 Newbrook Drive
Chantilly VA, 20153
Reference Range
| IU/mL | Interpretation |
| <7.20 | Negative |
| 7.20-8.79 | Equivocal |
| >8.79 | Positive |
Setup Schedule / Expected Turnaround Time
Tuesday, Thursday, Saturday; Report available: 2 - 5 days
Specimen Collection
Special Instructions
N/A
Preferred Specimen
1 mL serum
Minimum Volume
0.5 mL
Instructions
N/A
Patient Preparation
N/A
Storage
Plastic screw-cap vial
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 4 days
- Refrigerated: 7 days
- Frozen: 30 days
Limitations
During reactivation, an IgM response may not occur, or be present at levels too low to be detected.
Other Acceptable Specimens
N/A
Unacceptable Specimens
Gross hemolysis, grossly lipemic
Result Information
Methodology
Immunoassay (IA)
Testing Laboratory
N/A
Reference Range
| IU/mL | Interpretation |
| <7.20 | Negative |
| 7.20-8.79 | Equivocal |
| >8.79 | Positive |
Setup Schedule / Expected Turnaround Time
Tuesday, Thursday, Saturday; Report available: 2 - 5 days