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Community-acquired pneumonia

Prevalence
Causes
Clinical features
Differential Diagnosis
Investigations
Therapy
Prevention
Prognosis
Investigations
  • pulse oximetry c 
  • blood count c 
  • urea, electrolytes and creatinine a  
  • glucose a 
  • creatine kinase c 
  • blood culture c  
  • sputum Gram stain d  and culture c 
  • serology if atypical organisms are suspected a
    • influenza A and B
    • Coxiella burnetti
    • Chlamydia psittaci
    • Mycoplasma pneumoniae
    • Legionalla pneumophila

  • urine for Legionella antigen c 
  • arterial blood gas a 
  • chest x-ray  a
    Look for
    • a lobar infiltrate c 
    • pleural effusion a 
Consider
  • pneumococcal PCR c
  • broncheoalveolar lavage a  if the diagnosis remains uncertain.

 

Expiry date: July 2003
Levels of Evidence used in grading these guides

Author   CM   Ball
Reviewer   M   Kamei
CAT Writers   C   Ball , CJ   Wotton , B   Phillips