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Trypanosoma cruzi Antibody, IgG
0051076
Ordering Recommendation

Aid in the diagnosis of non-acute (chronic phase) Chagas disease (T. cruzi).

Mnemonic
CHAGAS G
Methodology
Semi-Quantitative Enzyme-Linked Immunosorbent Assay
Performed
Wed
Reported
1-8 days
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.  
Specimen Preparation
Separate serum from cells ASAP or within 2 hours of collection. Transfer 0.5 mL serum to an ARUP Standard Transport Tube. (Min: 0.15 mL) Parallel testing is preferred and convalescent specimens must be received within 30 days of the acute specimens. Mark specimens plainly as "acute" or "convalescent."  
Storage/Transport Temperature
Refrigerated. Also acceptable: Room temperature or frozen.  
Unacceptable Conditions
Plasma. Bacterially contaminated, heat-inactivated, hemolyzed, icteric, lipemic, or turbid specimens.  
Remarks
 
Stability
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year  
Reference Interval
Effective August 17, 2015

1.00 IV or less:  Negative - No significant level of Trypanosoma cruzi IgG antibody detected.
1.01-1.10 IV:  Equivocal - Questionable presence of Trypanosoma cruzi IgG antibody detected. Repeat testing  in 10-14 days may be helpful.
1.11 IV or greater:  Positive - IgG antibodies to Trypanosoma cruzi detected, which may suggest current or past infection.
Interpretive Data
This assay should not be used for blood donor screening or associated re-entry protocols, or for screening Human Cell and Cellular Tissue-Based Products (HCT/Ps).


Note
CPT Code(s)
86753
Components
Component Test Code*Component Chart NameLOINC
0051076Trypanosoma cruzi Antibody, IgG59387-1
* 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
  • Chagas Antibody, IgG
  • Tcruzi IgG Ab
  • Trypanosoma cruzi Antibody, Total