Legionella Antigen, Urine
Test Summary
The detection of Legionella pneumophila serogroup 1 urine antigens by EIA is highly sensitive and specific. When combined with serum antibody detection and examination of respiratory secretions the urinary antigen test provides optimal diagnosis. Antigenuria can occur 2-3 days after infection and may persist for prolonged periods after treatment. Regardless of whether a urine antigen test is used culture should always be performed because culture diagnosis continues to be the most sensitive and specific means to diagnose legionnaire's disease. Only serogroup 1 is detected by EIA. Culture must be performed to detect other serogroups.
Aliases
- N/A
Specimen Collection
Special Instructions
N/A
Preferred Specimen
5 mL Urine (minimum 0.5 mL)
Minimum Volume
0.5 mL
Instructions
N/A
Patient Preparation
N/A
Storage
Sterile Urine Cup
Transport Temperature
Room Temperature or Refrigerated
Specimen Stability
- Room Temperature = 1 day
- Refrigerated = 14 days
- Frozen = at least 7 days
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
N/A
Order Code
LEGUAG
EPIC (Premier) Code
LAB281
Includes
N/A
CPT Code
- 87449
Billing Code
- 500346
CPT Statement
Methodology
Enzyme Immunoassay (EIA)
FDA Status
FDA Approved
Physician Attestation of Informed Consent
N/A
Testing Laboratory
CompuNet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine OH, 45439
2308 Sandridge Drive
Moraine OH, 45439
Department
Molecular/Serology
Reference Range
| SEX | AGE | Report Normals | Units |
| N/M/F | 1000Y | Negative | |
| This assay is specific for legionella pneumophila serogroup 1 which causes more then 50% of all legionella infections. This assay will not detect infections caused by other legionella species / serogroups. Antigenuria may persist for prolonged periods of time. | |||
Setup Schedule / Expected Turnaround Time
Monday - Sunday; BS; Report available: 1 day
Specimen Collection
Special Instructions
N/A
Preferred Specimen
5 mL Urine (minimum 0.5 mL)
Minimum Volume
0.5 mL
Instructions
N/A
Patient Preparation
N/A
Storage
Sterile Urine Cup
Transport Temperature
Room Temperature or Refrigerated
Specimen Stability
- Room Temperature = 1 day
- Refrigerated = 14 days
- Frozen = at least 7 days
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
N/A
Result Information
Methodology
Enzyme Immunoassay (EIA)
Testing Laboratory
N/A
Reference Range
| SEX | AGE | Report Normals | Units |
| N/M/F | 1000Y | Negative | |
| This assay is specific for legionella pneumophila serogroup 1 which causes more then 50% of all legionella infections. This assay will not detect infections caused by other legionella species / serogroups. Antigenuria may persist for prolonged periods of time. | |||
Setup Schedule / Expected Turnaround Time
Monday - Sunday; BS; Report available: 1 day