Hypotension or shock

Hypotension or shock is a topic covered in the Diagnosaurus.

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DDx

Low stroke volume

  • Hypovolemia, eg, hemorrhage, vomiting, diarrhea, burns, "third spacing"
  • Pneumothorax
  • Pulmonary embolus
  • Cardiac tamponade
  • "Pump failure" due to myocardial ischemia or cardiomyopathy
  • Aortic stenosis
  • Aortic insufficiency
  • Mitral regurgitation
  • Aortic dissection
  • Rupture of ventricular septum or free wall
Abnormal heart rate
  • Bradycardia
  • Tachycardia
Low systemic vascular resistance (SVR)
  • Sepsis
  • Adrenal insufficiency
  • Anaphylaxis
  • Drugs, eg, vasodilators
  • Neurogenic shock

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Last updated: December 1, 2014