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This system tests for L pneumophila serogroups 1 through 6. It does not test for nonpneumophila, or atypical, Legionella species. A diagnosis should not be made on the basis of anti-Legionella serology results alone; test results should be interpreted in conjunction with the clinical evaluation and other diagnostic procedures.
Enzyme-linked immunosorbent assay (ELISA)
The positive cutoff has been set to the equivalent for an IFA titer of 1:256. If only one specimen is submitted, a positive is presumptive supporting evidence of exposure.
Causes for Rejection
Send paired serum samples, one during the acute stage, and the second, three to six weeks later, during the convalescent stage.
|Order Code||Order Code Name||Order Loinc||Result Code||Result Code Name||UofM||Result LOINC|
|164616||Legionella pneumophila Abs.||30046-7||164618||Legionella pneumophila Abs.||OD ratio||30046-7|