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Serogroups 1 to 6
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.
Red-top tube or gel-barrier tube
Maintain specimen at room temperature.
Causes for Rejection
Hemolysis; lipemia; gross bacterial contamination
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|