0051076
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Trypanosoma cruzi Antibody, IgG

CHAGAS G
Example Reports
Negative
Positive

Ordering Recommendation

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

New York DOH Approval Status

This test is New York state approved.

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: 0.3 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

Methodology

Semi-Quantitative Enzyme-Linked Immunosorbent Assay

Performed

Wed

Reported

1-8 days

Reference Interval

Test Number
 Components
 Reference Interval
  Trypanosoma cruzi Antibody, IgG 1.0 IV or less

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). 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.


Component
 Unit Of Measure
 Interpretation
Trypanosoma cruzi Antibody, IgG 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.

Compliance Category

FDA

Note

Hotline History

View Hotline History

 

Hotline History

Date of Change
Test Name Change
Methodology
Performance/Reported Schedule
Specimen Requirements
Reference Interval
Interpretive Data
Note
CPT Code
Component Change
Other Interface Change
New Test
Inactive
05/16/2022
X
N/A

CPT Codes

86753

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Components

Component Test Code* Component Chart Name LOINC
0051076 Trypanosoma cruzi Antibody, IgG 59387-1
* 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
Trypanosoma cruzi Antibody, IgG