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HelpTest Code LAGU Legionella Antigen, Random, Urine
Reporting Name
Legionella Ag, UUseful For
An adjunct to culture for the detection of past or current Legionnaires disease (Legionella pneumophila serogroup 1)
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
UrineOrdering Guidance
This assay has been verified using urine specimens only. For serum specimens, order SLEG / Legionella pneumophila (Legionnaires Disease), Antibody, Serum.
Other specimen types (eg, plasma or body fluids) that may contain Legionella antigen have not been verified for testing.
Specimen Required
Supplies: Urine Tubes, 10 mL (T068)
Container/Tube: Plastic, 10-mL urine tube
Specimen Volume: 0.5 mL
Collection Instructions:
1. Collect a random urine specimen.
2. No preservative.
3. Excessively bloody or very turbid specimens containing protein, cells, or particulates will be canceled. They can inhibit the function of the test.
4. Centrifuging to remove particulates is not approved.
5. Specimens with any dyes or unnatural color are not acceptable and will be canceled.
Specimen Minimum Volume
0.25 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Refrigerated (preferred) | 7 days | |
| Frozen | 14 days | ||
| Ambient | 24 hours |
Reference Values
Negative
Day(s) Performed
Monday through Friday
Test Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.CPT Code Information
87899
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| LAGU | Legionella Ag, U | 32781-7 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 81268 | Legionella Ag, U | 32781-7 |
Report Available
1 to 2 daysReject Due To
| Gross hemolysis | Reject |
| Turbid Dyes/unnaturally colored | Reject |
Method Name
Immunochromatographic Membrane Assay
Secondary ID
81268Forms
If not ordering electronically, complete, print, and send 1 of the following with the specimen:
-Infectious Disease Serology Test Request (T916)
-Microbiology Test Request (T244)