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HelpTest Code CRUZI Trypanosoma cruzi (Chagas) Antibody Panel, Serum
Specimen Required
Supplies: Sarstedt Aliquot Tube 5 mL (T914)
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 0.7 mL
Collection Instructions: Centrifuge and aliquot serum into a plastic vial.
Useful For
Diagnosis of chronic Trypanosoma cruzi infection (Chagas disease) using two different methods
Profile Information
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| CHAGS | T. cruzi Total Ab, EIA, S | No | Yes |
| CHAGL | T. cruzi IgG, LFA, S | No | Yes |
| CHAGI | T. cruzi Interpretation | No | Yes |
Method Name
CHAGS: Enzyme-Linked Immunosorbent Assay (ELISA)
CHAGL: Lateral Flow Assay (LFA)
Reporting Name
T. cruzi (Chagas) Ab Panel, SSpecimen Type
SerumSpecimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Frozen | 14 days |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
Reference Values
Negative
Reference values apply to all ages.
Interpretation
|
CHAGS result |
CHAGL result |
Interpretive comment |
|
Positive |
Positive |
Antibodies to Trypanosoma cruzi (Chagas disease) detected by two separate methods, suggesting current or past infection. Results should be interpreted alongside clinical presentation and exposure history. |
|
Positive |
Negative |
Antibodies to Trypanosoma cruzi (Chagas disease) detected by one of two assays. Discordant results can be resolved through submission of a new sample for testing or through additional testing at a public health laboratory. |
|
Positive |
Invalid |
Submission of a new sample is recommended to resolve discordant results. |
|
Indeterminate |
Positive |
Antibodies to Trypanosoma cruzi (Chagas disease) detected by one of two assays. Discordant results can be resolved through submission of a new sample for testing or through additional testing at a public health laboratory. |
|
Indeterminate |
Negative |
Submission of a new sample is recommended to resolve discordant results. |
|
Indeterminate |
Invalid |
Submission of a new sample is recommended to resolve discordant results. |
|
Negative |
Positive |
Antibodies to Trypanosoma cruzi (Chagas disease) detected by one of two assays. Discordant results can be resolved through submission of a new sample for testing or through additional testing at a public health laboratory. |
|
Negative |
Negative |
No antibodies to Trypanosoma cruzi (Chagas disease) detected. False negative results may occur in patients tested within 4 weeks of infection. |
|
Negative |
Invalid |
Submission of a new sample is recommended to resolve discordant results. |
Day(s) Performed
Monday
Report Available
Same day/1 to 8 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
86753 x2
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| CRUZI | T. cruzi (Chagas) Ab Panel, S | 23785-9 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| CHAGS | T. cruzi Total Ab, EIA, S | 57320-4 |
| CHAGL | T. cruzi IgG, LFA, S | 87994-0 |
| CHAGI | T. cruzi Interpretation | 59464-8 |
Forms
If not ordering electronically, complete, print, and send Infectious Disease Serology Test Request (T916) with the specimen.