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HelpTest Code TULI Francisella tularensis Antibody, IgM and IgG, Technical Interpretation, Serum
Reporting Name
F. tularensis InterpretationPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Useful For
Interpretation to aid in the diagnosis of tularemia caused by Francisella tularensis
Method Name
Only orderable as part of a profile. For more information see TULAB / Francisella tularensis Antibody, IgM and IgG, ELISA, Serum.
Technical Interpretation
Specimen Required
Only orderable as part of a profile. For more information see TULAB / Francisella tularensis Antibody, IgM and IgG, ELISA, Serum.
Specimen Type
SerumSpecimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 7 days | |
| Frozen | 30 days |
Reference Values
Only orderable as part of a profile. For more information see TULAB / Francisella tularensis Antibody, IgM and IgG, ELISA, Serum.
IgM: Negative
IgG: Negative
Reference values apply to all ages.
Interpretation
|
IgM result |
IgG result |
Interpretation |
|
Negative |
Negative |
No antibodies to Francisella tularensis detected. Antibody response may be negative in samples collected too soon following infection/exposure. Repeat testing on a new sample in 1 to 2 weeks if clinically indicated. |
|
Positive |
Negative |
IgM class antibodies to F tularensis detected, suggesting current or recent infection. Repeat testing in 1 to 2 weeks to detect seroconversion of IgG may be considered to confirm the diagnosis. |
|
Positive |
Borderline |
|
|
Borderline |
Negative |
Questionable presence of IgM antibodies to F tularensis. Consider repeat testing in 1 to 2 weeks. |
|
Borderline |
Positive |
IgG class antibodies to F tularensis detected suggesting recent or past infection. Clinical correlation alongside presentation, exposure history and other laboratory findings required. |
|
Borderline |
Borderline |
Questionable presence of IgM and IgG class antibodies to F tularensis. Consider repeat testing in 1 to 2 weeks. |
|
Positive |
Positive |
IgM and IgG class antibodies to F tularensis detected suggesting current, recent or past infection. Cross-reactions may occur in patients with a current or prior Brucella infection. Clinical correlation alongside presentation, exposure history and other laboratory findings required. |
|
Negative |
Positive |
IgG class antibodies to F tularensis detected suggesting recent or past infection. Clinical correlation alongside presentation, exposure history and other laboratory findings required. |
|
Negative |
Borderline |
Questionable presence of IgG antibodies to F tularensis. Consider repeat testing in 1 to 2 weeks. |
Day(s) Performed
Tuesday, Thursday
Report Available
Same day/1 dayTest Classification
Not ApplicableLOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| TULI | F. tularensis Interpretation | 93718-5 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| TULI | F. tularensis Interpretation | 93718-5 |