Legionnaires Disease Questions & Answers

Updated: Aug 24, 2018
  • Author: Burke A Cunha, MD; Chief Editor: Michael Stuart Bronze, MD  more...
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Questions & Answers

Overview

What is Legionnaires disease?

What is Legionella bacterium?

What is the pathophysiology of Legionnaires disease?

How does transmission of Legionella occur?

What are factors that increase the risk of Legionnaires disease?

What is the incidence of Legionnaires disease in the US?

What is the global incidence of Legionnaires disease?

How does the incidence of Legionnaires disease vary by sex and age?

What is the prognosis of Legionnaires disease?

What are the complications of Legionnaires disease?

Presentation

Which clinical history is characteristic of Legionnaires disease?

What are the symptoms of Legionnaires disease?

Which physical findings are characteristic of Legionnaires disease?

What are the clinical predictors and diagnostic eliminators for Legionnaires disease?

DDX

Which conditions are included in the differential diagnoses of Legionnaires disease?

Workup

What is the role of lab testing in the diagnosis of Legionnaires disease?

Which lab findings indicate severe cases of Legionnaires disease?

Which histologic findings are characteristic of Legionnaires disease?

Which lab tests are performed in the evaluation of Legionnaires disease?

How is Legionnaires disease diagnosed?

What is the role of direct fluorescent antibody staining of sputum in the diagnosis of Legionnaires disease?

What is the role of serology in the diagnosis of Legionnaires disease?

What is the role of urinary antigen testing in the diagnosis of Legionnaires disease?

What is the role of polymerase chain reaction (PCR) assay in the diagnosis of Legionnaires disease?

What is the role of radiography in the diagnosis of Legionnaires disease?

What is the role of noncontrast head CT scanning in the diagnosis of Legionnaires disease?

What is the role of bronchoscopy in the diagnosis of Legionnaires disease?

What is the role of lumbar puncture in the diagnosis of Legionnaires disease?

What is the role of thoracentesis in the diagnosis of Legionnaires disease?

Treatment

What is the initial treatment for Legionnaires disease?

What is included in prehospital care of Legionnaires disease?

What is included in emergency department (ED) care of Legionnaires disease?

What are the indications for inpatient care of Legionnaires disease?

What is the role of antibiotic therapy for the treatment of Legionnaires disease?

Which specialists should be consulted for the treatment of Legionnaires disease?

How is Legionnaires disease?

Medications

Which medications are used in the treatment of Legionnaires disease?

Which medications in the drug class Antibiotics are used in the treatment of Legionnaires Disease?