Test Code LEGU Legionella Antigen, Urine
Additional Codes
Sunrise Clinical Manager (SCM) Orderable: Legionella Pneumophila Antigen, Urine
AllScripts (AEHR) Orderable: Legionella Pneumophila Antigen, Urine
Performing Laboratory
Northwell Health Laboratories
Methodology
Immunochromatographic Membrane Assay
Reference Values
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.
Test Classification and CPT Coding
87449
Specimen Requirements
Container/Tube: Urine container
Specimen: 10 mL from a random urine collection(3 mL min). No preservative.
Transport Temperature: Refrigerated
Day(s) and Time(s) Performed
Monday through Sunday
Useful For
As an adjunct to culture for the presumptive diagnosis of past or current Legionnaires disease (Legionella pneumophila serogroup 1)
Computer Interface Code
PDM # 5900908