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Test Findings
 
 

Extreme Axis Deviation

 
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Overview

Extreme axis deviation (also known as ‘northwest axis) occurs when the direction of cardiac depolarisation lies between -90° and 180°.
  • Look For

  • Negative leads I, II and aVF.
  • Extreme Axis Deviation
  • Significance

  • Extreme axis deviation is a strong indicator of ventricular tachycardia.
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