Diagnotics to determine dyspnea etiology

  1. chest radiography
  2. electrocardiography
  3. pulmonary function tests
  4. arterial blood gases
  5. complete blood counts
  6. serum potassium, magnesium and phosphate levels
  7. cardiopulmonary excercise testing
  8. tests for any suspected underlying pathologies – echocardiogram for a suspected pericardial effusio
Choice of appropriate diagnostic testing should be guided by:
  • disease stage
  • prognosis
  • risk : benefit ratios of any proposed test or interventions
  • the desires of the patient and family
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