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Author Question: The atrioventricular (AV) junction consists of the _____. a. SA and AV nodes b. AV node and the ... (Read 39 times)

mikaylakyoung

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on: Jun 25, 2018
The atrioventricular (AV) junction consists of the _____.
 
  a. SA and AV nodes
  b. AV node and the Purkinje fibers
  c. AV node and nonbranching portion of the bundle of His
  d. AV node, bundle of His, and the right and left bundle branches

Question 2

The usual rate of nonparoxysmal junctional tachycardia is _____ beats/min.
 
  a. 50 to 80
  b. 80 to 120
  c. 101 to 140
  d. 150 to 300


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emily12345

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Reply #1 on: Jun 25, 2018
Answer to Question 1

C
The AV node and the nonbranching portion of the bundle of His are called the AV junction. The bundle of His has pacemaker cells that are capable of discharging at a rhythmic rate of 40 to 60 beats/min.

Answer to Question 2

C
Nonparoxysmal (i.e., gradual onset) junctional tachycardia usually starts as an accelerated junctional rhythm, but the heart rate gradually increases to more than 100 beats/min. The usual ventricular rate for nonparoxysmal junctional tachycardia is 101 to 140 beats/min.


mikaylakyoung

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Reply 2 on: Jun 25, 2018
YES! Correct, THANKS for helping me on my review

yeungji

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Reply 3 on: Yesterday
Wow, this really help

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