Legionella Urinary Antigen LEGU

Synonyms

Allscripts (AEHR) Order Name

Legionella pneumophila Antigen, Urine

Sunrise Clinical Manager (SCM) Order Name

Legionella pneumophila Antigen, Urine

Clinical Info

For use as an adjunct to culture for the presumptive diagnosis of past or current Legionella infection. This test only detects antigen from Legionella pneumophila serogroup 1. For culture, order "Legionella Culture" on a lower respiratory specimen.

Specimen Type

Urine

Container

Urine-Yellow Top

Collection Instructions

Container/Tube: Urine non preservative tube
Specimen: 10 mL from a random urine collection(3 mL min). No preservative.
Transport Temperature: Refrigerated
Stability: 1 Day Room Temperature
14 Days Refrigerated
Frozen for longer storage

Transport Instructions

Refrigerated

Specimen Stability

1 Day Room Temperature
14 Days Refrigerated
Frozen for longer storage

Methodology

Immunochromatographic Membrane Assay( Binax NOW(R))

Days Performed

Monday through Sunday

Performing Laboratory

Northwell Health Laboratories

CPT

87449

PDM

5900908

Result Interpretation

   Negative 

Interpretive Data

Positive:          

Presumptive detection of L. pneumophila serogroup 1 antigen in urine, suggesting recent or current infection. Order “Culture –Legionella” as recommended to confirm infection.

Negative :

L. pneumophila serogroup 1 antigen in urine NOT detected, suggesting NO recent or current infection. Infection due to Legionella cannot be ruled out: other serogroups or species may cause disease, antigen may not be present in urine in early infection, or the level of antigens in urine may be below the detection limit of the test. Order “Culture –Legionella” recommended for uncommon cases of suspected Legionella pneumonia due to organisms other than L. pneumophila serogroup 1.

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