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IBHRE CEPS - Trouble Questions and Correct Answers the Latest Update
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168. Compared to the the permanent pacemaker, does a temp pacer have constant current or voltage? Also, how much voltage can it generate? 5V or 20V? Constant current, 20V. (Doubles 9.5V) 171. Which patient with acute MI is most likely to need a temp pacer? Inferior MI, Mobitz I AV Bock In...

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  • November 7, 2024
  • 19
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • ibhre ceps trouble questions and correct answer

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  • IBHRE CEPS
  • IBHRE CEPS

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IBHRE CEPS - Trouble Questions
and Correct Answers the Latest
Update
168. Compared to the the permanent pacemaker, does a temp pacer have

constant current or voltage? Also, how much voltage can it generate? 5V or

20V?


✓ Constant current, 20V. (Doubles 9.5V)



171. Which patient with acute MI is most likely to need a temp pacer?

Inferior MI, Mobitz I AV Bock

Inferior MI, bundle branch block

Anterior MI, Mobitz I AV Bock

Anterior MI, bundle branch block


✓ Anterior MI, bundle branch block
✓ Acute BBB post MI should be seen as a warning and often proceeds CHB. The RCA
commonly supplies blood to the AV node making the impact of an Anterior MI more
significant



12. For maximum electrical safety, the ECG monitored patient should be

_____________, and the monitor chassis should be _______________ or non-

conductive. (Grounded vs Ungrounded)


✓ Ungrounded, grounded

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34. What channel is responsible for the SA and AV node upstroke?


✓ Ca++ Slow Channel



38. How does gender effect SVT frequency for AVNRT and AVRT?


✓ Women twice as likely to get AVNRT, men twice as likely to get AVRT



39. The plateau (phase 2) occurs on the surface ECG during the_________ , and

during mechanical _________________ .


✓ QT interval, Systole



48. The pause after atrial pacing is termed:


✓ Overdrive suppression



49. Most arrhythmias in the EP lab are caused by?

a. Vagal response

b. Automaticity

c. Triggered

d. Reentry


✓ Reentry




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50. What mechanism causes "triggered" arrhythmias?

a. Reentry

b. After depolarization

c. Automaticity of the atrial tissue

d. Automaticity of the ventricular tissue


✓ After depolarization (think R on T)



51. What do the terms EAD and DAD stand for and what arrythmias are they

associated with?


✓ EAD - Early after deporization, Torsades
✓ DAD - Delayed after depolarization, RVOT VT



55. Which arrhythmia type most closely resembles an "itch of the heart" in

acutely ill patients?


✓ Automatic arrhythmias



58.


✓



59..


✓



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