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HelpTest Code TOX IGG Toxoplasma gondii Antibody, IgG, Serum
Infectious
Additional Codes
| Supplemental Test Code |
|---|
| 8762 |
Methodology
Multiflex Flow Immunoassay, Bio-Rad Bioplex 2200
Literature References:
Package insert: Bio-Rad Bioplex 2200 System ToRC IgG IFU 04-2019
Performing Laboratory
Barnes-Jewish Hospital Core Laboratory
Specimen Requirements
Specimen Type: Serum
Container/Tube: Plain red top, Red/Grey SST or Gold SST
Specimen Volume: Full tube
Specimen Transport Temperature
Ambient
Reference Values
Reference Value
Toxoplasma, IgG - Negative
Literature References:
1. Package insert: Bio-Rad 2200 System ToRC IgG IFU 04-2019
2. Clinical Laboratory Standards Institute (CLSI). Clinical Use and Interpretation of Serologic Testing for Toxoplasma gondii, Approved guideline. (M36-A), Feb 2004
Day(s) Test Set Up
Monday through Sunday, 0700-1300
Turnaround Time:
STAT: not available
Routine: results available the day of testing
Test Classification and CPT Coding
86777- Toxoplasma IgG
Additional Information
For BJH Laboratory Use Only
Alternate specimen type: Plasma: Mint green (heparin)
Analyte Stability:
Room temperature (18-30° C): 3 days
Refrigerated (2-8° C): 7 days.
Frozen: ( ≥-20° C, no RBCs)
No more than 3 freeze/thaw cycles
Avoid hemolysis
LOINC Code Information
| Name | LOINC Code |
| Toxoplasma Antibody, IgG, Immune Status | 5390-0 |
Interpretive Data
Negative - No detectable antibody.
Equivocal - Presence of detectable antibody cannot be determined.
Positive - Detectable levels of antibody present.
Note: Levels of IgG antibody to Toxoplasma gondii begin to rise 1 to 2 weeks after infection. Peak levels are reached in 6 to 8 weeks, then gradually decline over months to years. Low titers are generally detectable for life. The antibody titer does not correlate with severity of illness.