Urine Legionella pneumophila (serogroup 1), Antigen Build info

Synonyms

• LEGIONELLA ANTIGEN, URINE
• ATYPICAL
• LEGIONNAIRES
• PONTIAC
• LAB886

Procedure Name

LEGIONELLA ANTIGEN, URINE

Procedure Master Number

LAB886

Cerner Name

Legionella Urinary Antigen

Procedure ID

55678

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 Sources

Specimen Types

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

Specimen Volume

10 mL from a random urine collection(3 mL min). No preservative.

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

Only Orderable at Locations:

Results

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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