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Test Code LEGUA Legionella Antigen, Urine

Important Note

Reflex testing ordered as appropiate

This test is for Legionella pneumophilia serogroup 1 antigen only. While this serogroup is associated with >80% of Legionella infections, infections due to other serotypes will not be detected with this assay.

Performing Laboratory

Memorial Hospital-Microbiology Laboratory      304-388-9353
Greenbrier Vally Laboratory      304-647-6060

Specimen Requirements

Urine-Random urine collection in a urine container supplied-No Preservative

10mL

Send specimen refrigerated

Storage and Stability

Specime should be examined as soon as possible.  Store at 4o C if delayed.

Reference Values

Negative: No Legionella pneumophila serogroup 1 antigen detected. This does not rule out infection with other serogroups.
Positive: Legionella pneumophila serogroup 1 antigen detected in urine

Methodology

Enzyme Immunoassay (EIA)

Days Test Set Up and Turnaround

Monday through Sunday

CPT Coding

87522

Additional Information

Useful for detecting qualitatively the presence of Legionella pneumophila serogroup 1 antigen (Legionella pneumophila serogroup A antigen) in human urine as an adjunct to culture for the presumptive diagnosis of past or current legionnaires’ disease.

Specimen Rejection

  • Improperly labeled, collected, stored or transported
  • Quantity not sufficient