Dyspnea

Dyspnea is a topic covered in the Diagnosaurus.

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DDx

Acute

  • Asthma, pneumonia, pulmonary edema, pneumothorax, pulmonary embolus, metabolic acidosis, acute respiratory distress syndrome, panic attack
Pulmonary
  • Airflow obstruction (asthma, chronic obstructive pulmonary disease, upper airway obstruction), restrictive lung disease (interstitial lung disease, pleural thickening or effusion, respiratory muscle weakness, obesity), pneumonia, pneumothorax, pulmonary embolism, aspiration, acute respiratory distress syndrome
Cardiac
  • Myocardial ischemia, congestive heart failure, valvular obstruction, arrhythmia, cardiac tamponade
Metabolic
  • Acidosis, hypercapnia, sepsis
Hematologic
  • Anemia, methemoglobinemia
Psychiatric
  • Anxiety

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DDx

Acute

  • Asthma, pneumonia, pulmonary edema, pneumothorax, pulmonary embolus, metabolic acidosis, acute respiratory distress syndrome, panic attack
Pulmonary
  • Airflow obstruction (asthma, chronic obstructive pulmonary disease, upper airway obstruction), restrictive lung disease (interstitial lung disease, pleural thickening or effusion, respiratory muscle weakness, obesity), pneumonia, pneumothorax, pulmonary embolism, aspiration, acute respiratory distress syndrome
Cardiac
  • Myocardial ischemia, congestive heart failure, valvular obstruction, arrhythmia, cardiac tamponade
Metabolic
  • Acidosis, hypercapnia, sepsis
Hematologic
  • Anemia, methemoglobinemia
Psychiatric
  • Anxiety

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