Quiz #3 - Electrophysiology

19 Questions | Total Attempts: 55

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Quiz #3 - Electrophysiology

Questions and Answers
  • 1. 
    Ventricular Repolarization is represented by _____________ on an ECG 
    • A. 

      ST Segment

    • B. 

      T Wave

    • C. 

      U Wave

    • D. 

      QRS Complex

  • 2. 
    The QRS complex corresponds to....
    • A. 

      Ventricular Depolarization

    • B. 

      Ventricular Repolarization

    • C. 

      Atrial Depolarization

    • D. 

      None of the above

  • 3. 
    The _____________ sets the natural pace of heart at a rate of ______________
    • A. 

      Av Node, 60-100 BPM

    • B. 

      Bundle of HIS, 40-60 BPM

    • C. 

      AV Node, 100-120 BPM

    • D. 

      SA Node, 60-100 BPM

  • 4. 
    The P wave on an ECG corresponds to:
    • A. 

      Atrial repolarization

    • B. 

      Ventricular depolarization

    • C. 

      Atrial depolarization

    • D. 

      Delay at the AV node

  • 5. 
    Ventricular Fibrillation is dangerous because it can result in ________________
  • 6. 
    Which Supraventricular Tachycardia is characterized by a saw tooth pattern on an ECG?
    • A. 

      AVRT

    • B. 

      AVNRT

    • C. 

      AFib

    • D. 

      Aflutter

  • 7. 
    Which Supraventricular tachycardia is associated with a delta wave on an ECG?
    • A. 

      AVRT (WPW)

    • B. 

      AVNRT

    • C. 

      AFlutter

    • D. 

      AFib

  • 8. 
    AFib is characterized by rapid, regular contractions of the Atria. 
    • A. 

      True

    • B. 

      False

  • 9. 
    The 4 categories of AFib are ____________, ___________________, ________________, and ___________
  • 10. 
    Cardiac rhythm is above 100 BPM is also known as 
    • A. 

      Tachycardia

    • B. 

      Bradycardia

    • C. 

      Atrial Flutter

    • D. 

      AVRT

  • 11. 
    If a patient has a heartbeat of 40-60 BPM, which of the following would not be true?
    • A. 

      The AV Node is depolarizing spontaneously

    • B. 

      The SA node is not stimulating the AV Node

    • C. 

      The patient is experiencing bradycardia

    • D. 

      The SA node is setting the pace

  • 12. 
    Intermittent failure of the AV Node is referred to as _________________ AV Block
  • 13. 
    True or False? Calcium initiates contraction and also delays repolarization 
    • A. 

      True

    • B. 

      False

  • 14. 
    Which best describes why impulses are delayed at the AV node? 
    • A. 

      The bundle of His has a long refractory period

    • B. 

      The SA node has a long refractory period

    • C. 

      Atrial contraction takes longer than ventricular contraction

    • D. 

      To allow for ventricular filling

  • 15. 
    True or False? During depolarization the cell's inner electric charge becomes more negative.
    • A. 

      True

    • B. 

      False

  • 16. 
    True or False? Rate of stroke is 5x higher for patients with AFib due to stagnant blood in the right atrial appendage
    • A. 

      True

    • B. 

      False

  • 17. 
    Which of the following arrhythmias results in heart rate slower than the average resting HR (60bpm)
    • A. 

      Tachycardia

    • B. 

      AVRT

    • C. 

      Premature Ventricular Contractions

    • D. 

      AV Block - 3rd Degree

  • 18. 
    True or False? Congenital health conditions develop in early childhood.
    • A. 

      True

    • B. 

      False

  • 19. 
    The action potential travels from the AV node to the right & left bundle branches via the ____________________________.
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