Cardiac Medicine Certification (CMC) Practice Exam

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Prepare for the Cardiac Medicine Certification Test with confidence. Our comprehensive quiz offers flashcards and multiple-choice questions, along with hints and explanations to aid your understanding. Get ready to excel in your certification journey!

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What is the expected ventricular rate in accelerated junctional rhythm?

  1. 20 to 40 bpm

  2. 40 to 60 bpm

  3. 60 to 100 bpm

  4. Over 100 bpm

The correct answer is: 60 to 100 bpm

In accelerated junctional rhythm, the expected ventricular rate typically ranges from 60 to 100 beats per minute. This rhythm originates from the junctional tissue and occurs when the junctional pacemaker becomes more active than the usual intrinsic rates of the SA node. The rate is considered "accelerated" because it exceeds the normal rates observed in junctional rhythms, which are usually slower, typically around 40 to 60 bpm. Therefore, the correct answer reflects the higher rate characteristic of an accelerated junctional rhythm, aligning with the physiological behavior of the heart in this condition.