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Test Findings
 
 

Tall T Waves

 
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Overview

  • Look For

  • T wave prominence. Note whether the T waves are symmetrical or asymmetrical.
  • Causes of Tall T Waves

  • Hyperkalaemia
  • Benign early repolarisation
  • Myocardial infarction
  • Interpretation

  • Narrow, symmetrical ‘tented’ T waves - suggestive of hyperkalaemia
  • Tall T waves with concave ST elevation in the precordial leads - suggestive of benign early repolarisation
  • Prominent, symmetrical and pointed (‘hyperacute’) T waves - suggestive of myocardial infarction
  • Example

  • “Tented” T waves associated with mild hyperkalaemia:
  • Tall T Waves
     
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