Arrhythmias Quiz
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Questions and Answers

Which of the following factors can result in alterations in the QRS complex and/or T wave in ECG?

  • AV node and bundle branch blocks
  • Myocardial ischemia and infarction
  • Metabolic factors and drug effects
  • Cardiac enlargement and hypertrophy (correct)
  • Which condition may show similar ST segment, T wave and Q wave changes, complicating the diagnosis of ischemia or infarction?

  • Myocardial ischemia and infarction (correct)
  • Metabolic factors and drug effects
  • Cardiac enlargement and hypertrophy
  • AV node and bundle branch blocks
  • Which electrolyte imbalance predominantly affects repolarization (T wave changes) in ECG?

  • Hypercalcemia
  • Hypocalcemia
  • Hypokalemia
  • Hyperkalemia (correct)
  • Which pharmacologic agents can affect various aspects of the myocardial action potential resulting in changes in the ECG, particularly the QT interval?

    <p>Antiarrhythmics</p> Signup and view all the answers

    Which type of infarcts may be classified based on altered Q waves?

    <p>Q-wave</p> Signup and view all the answers

    Which of the following conditions can result in distinctive changes in the ECG pattern, with altered P wave abnormalities in atria and alterations in the QRS complex and/or T wave in ventricular abnormalities?

    <p>Cardiac enlargement and hypertrophy</p> Signup and view all the answers

    Which electrolyte imbalance predominantly affects repolarization (T wave changes) in ECG?

    <p>Hyperkalemia</p> Signup and view all the answers

    Which type of infarcts may be classified based on altered Q waves?

    <p>Q-wave</p> Signup and view all the answers

    Which of the following can affect various aspects of the myocardial action potential resulting in changes in the ECG, particularly the QT interval?

    <p>Various pharmacologic agents</p> Signup and view all the answers

    Which of the following intrinsic impairments of conduction may result in delay in QRS and affected T wave?

    <p>AV node and bundle branch blocks</p> Signup and view all the answers

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