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Test Findings

Extreme Axis Deviation



  • 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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