Ordering Recommendation
Provide retrospective evidence of suspected Legionella pneumophila infection.
Mnemonic
LEGAG-U
Methodology
Qualitative Enzyme-Linked Immunosorbent Assay
Performed
Sun-Sat
Reported
Within 24 hours
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect
Random urine.
Specimen Preparation
Mix specimen well. Transfer 4 mL urine to an ARUP Standard Transport Tube. (Min: 1 mL)
Storage/Transport Temperature
Refrigerated.
Unacceptable Conditions
Specimens in preservatives.
Remarks
Stability
Ambient: 24 hours; Refrigerated: 2 weeks; Frozen: 2 weeks
Reference Interval
Negative
Interpretive Data
This assay detects Legionella pneumophila serogroup one (1) antigen. A negative test result does not rule out the possibility of Legionella infection due to other serogroups or species of Legionella. A positive result may indicate a recent or remote infection with serogroup 1.
Compliance Category
FDA
Note
Hotline History
N/A
CPT Codes
87449
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
0070322 | Legionella pneumophila Ag, Urine | 6447-7 |
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
- Legionella Antigen, Urine
- Legionella Urinary Antigen
- Urine Legionella antigen
Legionella pneumophila Antigen, Urine