EKG Review 4: Pacemakers

~ Exam ~

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This test has 12 questions.

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1. An AV Pacer is a rhythm in which the heart rhythm is __ produced from the implanted pacemaker.
  a. mainly
  b. partially
  c. completely
  d. not
2. The AV Pacer delivers ____ impulse that causes contractions.
  a. atrial
  b. ventricular
  c. both a and b
3. P waves may be ___
  a. present
  b. absent
  c. dissociated from the QRS Complex
  d. any of the above
4. Ventricular pacemakers are used when a patient's own heart is too ____
  a. slow
  b. fast
  c. weak
  d. strong
5. Failure to sense can be caused when the sensitivity setting is too ___.
  a. high
  b. low
  c. none of the above
6. Failure to capture of a pacemaker happens when the output is too ___
  a. irregular
  b. high
  c. low
  d. all of the above
7. Failure to capture may cause an absence of a mechanical contraction of the ventricle, or no QRS.
  a. True
  b. False
  c. nether true or false
8. In failure to capture pacemaker, rate will be ___ due to the failure to produce QRS.
  a. regular
  b. irregular
  c. slow
  d. fast
9. If the failure to capture is continuous, the patient will be ___
  a. in brady cardia
  b. pulse-less
  c. a or b
  d. a but never b
10. In failure to capture pacemaker, external pacing may __ an option
  a. be
  b. never be
  c. either a or b
11. Failure to capture pacemaker and failure to sense __
  a. are the same
  b. are different
  c. are related
  d. all the above
12. Ventricular pacemakers are used for ___
  a. sinus arrest
  b. sick sinus syndrom
  c. slow atrial fibrillation
  d. a, b, or c