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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
ARUP Consult®
Disease Topics
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.

This test should not be used for blood donor screening, associated re-entry protocols, or for screening Human Cell, Tissues and Cellular and Tissue-Based Products (HCT/P).


Note
CPT Code(s)
86777
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