Trypanosoma cruzi Antibody, IgG Panel
Ordering Recommendation
Aid in the diagnosis of exposure and chronic phase Chagas disease (T. cruzi).
New York DOH Approval Status
Specimen Required
Plain red or serum separator tube.
Separate serum from cells ASAP or within 2 hours of collection. Transfer 0.5 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 of the acute specimens. Mark specimens plainly as "acute" or "convalescent."
Refrigerated. Also acceptable: Room temperature or frozen.
Plasma. Bacterially contaminated, heat-inactivated, hemolyzed, icteric, lipemic, or turbid specimens.
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year
Methodology
Semi-Quantitative Enzyme-Linked Immunosorbent Assay (ELISA)
Performed
Mon, Wed, Fri
Reported
1-6 days
Reference Interval
Test Number |
Components |
Reference Interval |
---|---|---|
T. cruzi IgG, Recombinant Antigen | 0.8 S/Co or less | |
T. cruzi IgG, Purified Antigen | 1.0 IV or less |
Interpretive Data
According to the CDC, at least two different serologic tests should be used to make the laboratory diagnosis of chronic Chagas Disease, as no single serologic test is sufficiently sensitive and specific. If results between the two assays are discrepant, repeat testing or testing by a third method may be helpful.
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).
Component | Unit Of Measure | Interpretation |
---|---|---|
T. cruzi IgG, Recombinant Antigen | 0.8 S/Co or less 0.9 to 1.1 S/Co 1.2 S/Co or greater |
Negative - No significant level of Trypanosoma cruzi IgG antibody detected. Equivocal - Questionable presence of Trypanosoma cruzi IgG antibody detected. Repeat testing in 10-14 days may be helpful. Positive - IgG antibodies to Trypanosoma cruzi detected which may suggest current or past infection. |
T. cruzi IgG, Purified Antigen | 1.0 IV or less 1.1 IV 1.2 IV or greater |
Negative - No significant level of Trypanosoma cruzi IgG antibody detected. Equivocal - Questionable presence of Trypanosoma cruzi IgG antibody detected. Repeat testing in 10-14 days may be helpful. Positive - IgG antibodies to Trypanosoma cruzi detected which may suggest current or past infection. |
FDA
Note
T. cruzi IgG , Recombinant Antigen assay is performed using the Wiener Chagatest ELISA recombinante v.3.0.
T. cruzi IgG , Purified Antigen assay is performed using the Hemagen Chagas Kit.
Hotline History
Hotline History
CPT Codes
86753 x2
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
0051076 | T. cruzi IgG, Purified Antigen | 59387-1 |
3020059 | T. cruzi IgG, Recombinant Antigen | 59387-1 |
Aliases
- Chagas Antibody, IgG
- Chagas disease
- Trypanosomiasis