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Signs
 
 

Postural Tachycardia

 
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Overview

  • How To Elicit

  • Measure the heart rate with the patient lying down, and then remeasure it after the patient has been standing for one minute.
  • Interpretation

  • Postural tachycardia is present if there is a rise of >20bpm following standing.
  • Causes of Postural Tachycardia

  • Reduced intravascular volume - dehydration, haemorrhage
  • Cardiac - congestive cardiac failure, cardiomyopathy, myocarditis, constrictive pericarditis, aortic stenosis
  • Drugs - nitrates, anticholinergics, antidepressants, antihypertensives, levodopa
  • Prolonged bed rest
  • Alcohol
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