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Exam (elaborations)

IBHRE CEPS - Trouble Questions with solutions 100% solved

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IBHRE CEPS - Trouble Questions with solutions 100% solved 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 likel...

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  • September 23, 2024
  • 18
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • IBHRE
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UpperClass
IBHRE CEPS - Trouble Questions with
solutions 100% solved

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




34. What channel is responsible for the SA and AV node upstroke? Ca++ Slow Channel

, IBHRE CEPS - Trouble Questions with
solutions 100% solved

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




50. What mechanism causes "triggered" arrhythmias?

a. Reentry

b. After depolarization

, IBHRE CEPS - Trouble Questions with
solutions 100% solved
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..




60.




61.

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