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Test Code LAGU Legionella Antigen, Random, Urine

Reporting Name

Legionella Ag, U

Useful 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

Urine


Ordering 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 days

Method Name

Immunochromatographic Membrane Assay

Forms

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)