Legionella pneumophila DFA
2004598
Ordering Recommendation
Submit With Order
Mnemonic
LEGIONFA
Methodology
Direct Fluorescent Antibody Stain
Performed
Sun-Sat
Reported
Within 24 hours
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
 
Collect
Pericardial fluid or respiratory specimens.  
Specimen Preparation
Fluid: Prepare two duplicate slides. OR transfer 1 mL fluid to a sterile container.
Tissue:
Transfer tissue to a sterile container and place on gauze moistened with sterile non-bacteriostatic saline to prevent drying.  
Storage/Transport Temperature
Refrigerated. OR frozen if transport occurs more than 48 hours after collection.  
Unacceptable Conditions
Non-respiratory specimens. Specimens in preservatives or viral transport medium.  
Remarks
Specimen source preferred.  
Stability
Fluid or Tissue: Ambient: 12 hours; Refrigerated: 48 hours; Frozen: 1 week
Slides
: Ambient: 1 week; Refrigerated: 1 week; Frozen: 1 week  
Reference Interval
Negative
Interpretive Data
Note
DFA is not recommended for diagnosing Legionella pneumophila-caused infections. For diagnosing Legionella pneumophila -caused infections, refer to Legionella Species, Culture (ARUP test code 0060113), Legionella Species by PCR (ARUP test code 0056105) for amplified DNA testing of respiratory specimens, or Legionella pneumophila Antigen, Urine (ARUP test code 0070322) for urine specimens.
CPT Code(s)
87278
Components
Component Test Code*Component Chart Name
2004599Legionella pneumophila DFA Source
2004600Legionella pneumophila DFA Result
* 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.
Cross References
  • L. pneumophilia DFA
  • Legionella Smear, DFA