Toxoplasma gondii Antibody, IgG
0050770
Ordering Recommendation
 
Mnemonic
TOXEIGG
Methodology
Quantitative Chemiluminescent Immunoassay
Performed
Sun-Sat
Reported
Within 24 hours  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
  
Collect
Serum separator tube. Also acceptable: Serum from umbilical cord blood.  
Specimen Preparation
Allow specimen to clot completely at room temperature. Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.5 mL) Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Mark specimens plainly as "acute" or "convalescent."  
Storage/Transport Temperature
Refrigerated.  
Unacceptable Conditions
Plasma or urine. Contaminated, heat-inactivated, or grossly hemolyzed specimens.  
Remarks
  
Stability
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)  
Reference Interval
Effective March 3, 2014
 
7.1 IU/mL or less: Not Detected.
7.2-​8.7 IU/mL: Indeterminate -​ Repeat testing in 10-​14 days may be helpful.
8.8 IU/mL or greater: Detected.
Interpretive Data
The best evidence for current infection is a significant change on two appropriately timed specimens, where both tests are done in the same laboratory at the same time.  
Note
 
CPT Code(s)
86317
Components
Component Test Code*Component Chart NameLOINC
0050770Toxoplasma gondii Ab, IgG8039-0
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • parasite serology
  • T. gondii IgG
  • Toxoplasma Antibody, IgG, Serum