MedSchool: Ace Your OSCEsThe Medical Company
GET - On the App Store
Test Findings

Right Axis Deviation

April 24th, 2019


Right axis deviation occurs when the direction of cardiac depolarisation lies between 90° and 180°.
  • Look For

  • Negative lead I with positive lead aVF.
  • Right Axis Deviation
Lead II will be positive between 90-150° and negative between 150-180°.
  • Causes of Right Axis Deviation

  • Right ventricular hypertrophy
  • Right heart strain - PE, COPD
  • Lateral myocardial infarction
  • Left posterior fascicular block
  • Dextrocardia
Want more info like this?
  • Your electronic clinical medicine handbook
  • Guides to help pass your exams
  • Tools every medical student needs
  • Quick diagrams to have the answers, fast
  • Quizzes to test your knowledge
Sign Up Now

Snapshot: Initialising...