Chapter 11

Question 0

Progressive prolongation of the electrical impulse delay at the AV node, which produces an increase in length of the PR interval

Answer 0

Second degree AV block, Mobitz type 1, or Wenckebach

Question 1

The most usual form of block, results from excessive conduction delay in the AV node

Answer 1

First degree heart block

Question 2

A more serious dysrhythmia that occurs when there is an intermittent interruption in the electrical conduction system near or below the AV junction

Answer 2

Second degree AV block, or Mobitz type 2

Question 3

The most serious type of heart block, the atria and ventricles are completely blocked or separated from each other electrically at or below the AV node, ventricular rate will most commonly be between 20 and 40 BPM

Answer 3

Third degree AV block (complete)