| Legionella Urinary Antigen (8000100470) | |
|---|---|
| Test Mnemonic: | C LUA |
| Specimen Requirements: | |
| Collection: | Urine specimen should be collected in standard container |
| Container: | Sterile, leak-proof container |
| Minimum Volume: | 5ml |
| Storage/Transport: | Room temperature for 24 hours prior to testing, refrigerate if delay in transport |
| Stability: | 14 days refrigerated |
| Causes for Rejection: | Leaking container, insufficient volume, specimens other than urine, incomplete labeling of container or mislabeled container, missing collection information, more than one specimen submitted |
| Reference Range: | Negative |
| Turnaround Time: | 4 hours |
| Methodology: | Immunochromatographic membrane cartridge assay |
| Performed: | Clinical Microbiology |
| Synonyms: | Legionella antigen, urine |
| Clinical Indication: | Diagnosis of pneumonia caused by Legionella pneumophila serogroup 1 |
| Patient Preparation : | Urine sample is required |
| CPT 4 Code: | 87899 |
| Note: | This test will not detect infections caused by other L. pneumophila serogroups and by other Legionella species. A negative antigen result does not exclude infection with L. pneumophila serogroup 1. Culture is recommended for supected pneumonia to detect causative agents other than L. pneumophila serogroup 1 and to recover L. pneumophila serogroup 1 when antigen is not detected in urine. |
| When ordering tests for which Medicare or Medicaid reimbursement will be sought, physicians should only order tests that are medically necessary for the diagnosis or treatment of the patient. Components of the organ or disease panels may be ordered individually. The diagnostic information must substantiate all tests ordered and must be in the form of an ICD-10 code or its verbal equivalent. | |