Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Order Display Name: Geisinger Epic Procedure Code Or ID CPT Code:  

LEGIONELLA ANTIGEN, URINE

ORDERING INFORMATION:
Geisinger Epic Procedure Code: LAB2600         Geisinger Epic ID: 39172

SPECIMEN COLLECTION
Specimen type:
Random urine
Preferred collection container:
Specimen required:
5 mL aliquot urine; minimum 2 mL.

SPECIMEN PROCESSING
Specimen processing instructions:
Do not centrifuge. 
Transport temperature:
Refrigerated (preferred). Room temperature (stable 24 hours) and frozen specimens also acceptable.
Specimen stability:
Room temperature: 24 hours. 2-8°C: 14 days. Frozen: 6 months.
Rejection criteria:
Specimen stability exceeded; specimen grossly hemolyzed.

TEST DETAILS
Reference interval:
Negative.
CPT code(s):
87449
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.  The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Test includes:
Antigen detection to Legionella.
Methodology:
Rapid Immunochromatographic Assay
Synonyms:
LEGIONELLA URINARY ANTIGEN
LEGAGB
Clinical significance:
Legionella pneumophila is responsible for 80-90% of cases of Legionella infection, with serogroup 1 accounting for 70 to 80% of all legionellosis. This test will not detect infections caused by other L. pneumophila serogroups or Legionella species. Although this is a highly sensitive and specific test, a negative antigen result does not fully exclude infection with L. pneumophila serogroup 1. CDC recommends urinary antigen assay and selective respiratory culture to detect causative agents other than L. pneumophila serogroup 1 and to recover L. pneumophila serogroup 1 when antigen is negative.
Doctoral Director(s:)
Hoi-Ying Elsie Yu, PhD, DABCC
Stacy Kenyon, PhD, DABCC
   
Review Date: 11/22/2020

Performing Locations

Geisinger Medical Center

Performing laboratory: Immunology
Technical Lead: Kathy Hurst
Frequency: Daily, 1st shift
Performed stat? No
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