Chapter Review

  1. The AV node and the AV junction are basically the same thing. True or False.

  2. Rhythms that originate in the AV junction are known as ___________ rhythms.

  3. P waves that originate in the AV junction are always inverted. True or False.

  4. The P wave in a junctional rhythm can be found:

A. Immediately before the QRS complex

B. Buried within the QRS complex

C. Immediately after the QRS complex

D. All of the above

  5. If the P wave is ever found in front of the QRS complex, the PR interval would be __________ than normal.

  6. When the P wave is found after the QRS complex, we do not talk about the PR interval. Instead, we talk about the ____ interval.

  7. When you see an inverted P wave in front of the QRS complex, take a look at the PR interval. If the PR interval is normal or prolonged, you should consider it to be a(n) __________ complex. If the PR interval is short, you are probably dealing with a(n) __________ complex.

  8. A junctional rhythm occurs at rates below ____ BPM.

  9. An accelerated junctional rhythm occurs at rates between ____ and ____ BPM.

10. A junctional tachycardia occurs at rates at or above ____ BPM.