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Johnwayne Johnwayne
wrote...
6 years ago
Complete the following ECG criteria for a junctional tachycardia:
 
  Rhythm _____________________________ ___________
  Rate _____________________________ ___________
  P waves _____________________________ ___________
  PR interval _____________________________ ___________
  QRS duration _____________________________ ___________
 
  Fill in the blanks with correct word

Question 2

Indicate the ventricular rates for each of the following junctional dysrhythmias:
 
  A. Junctional bradycardia ____________________
  B. Junctional tachycardia ____________________
  C. Accelerated junctional rhythm ____________________
  D. Junctional rhythm ____________________
 
  Fill in the blanks with correct word

Question 3

Complete the following ECG criteria for an accelerated junctional rhythm:
 
  Rhythm _____________________________ ___________
  Rate _____________________________ ___________
  P waves _____________________________ ___________
  PR interval _____________________________ ___________
  QRS duration _____________________________ ___________
 
  Fill in the blanks with correct word

Question 4

List four reasons why the AV junction may assume responsibility for pacing the heart.
 
  What will be an ideal response?

Question 5

Complete the following ECG criteria for a junctional escape rhythm:
 
  Rhythm _____________________________ ___________
  Rate _____________________________ ___________
  P waves _____________________________ ___________
  PR interval _____________________________ ___________
  QRS duration _____________________________ ___________
 
  Fill in the blanks with correct word
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Replies
wrote...
6 years ago
The answer to question 1  Rhythm Regular.
Rate 101 to 180 beats/min.
P waves May occur before, during, or after the QRS; if visible, the P wave is inverted in leads II, III, and aVF.
PR interval If a P wave occurs before the QRS, the PR interval will usually be 0.12 sec or less; if no P wave occurs before the QRS, there will be no PR interval.
QRS duration 0.11 seconds or less unless abnormally conducted.

The answer to question 2  A. Slower than 40 beats/min
B. 101 to 180 beats/min
C. 61 to 100 beats/min
D. 40 to 60 beats/min

The answer to question 3  Rhythm Regular.
Rate 61 to 100 beats/min.
P waves May occur before, during, or after the QRS; if visible, the P wave is inverted in leads II, III, and aVF.
PR interval If a P wave occurs before the QRS, the PR interval will usually be 0.12 sec or less; if no P wave occurs before the QRS, there will be no PR interval.
QRS duration 0.11 seconds or less unless abnormally conducted.

The answer to question 4  The AV junction may assume responsibility for pacing the heart if: (1) the SA node fails to discharge (such as sinus arrest), (2) an impulse from the SA node is generated but blocked as it exits the SA node (such as SA block), (3) the rate of discharge of the SA node is slower than that of the AV junction (such as a sinus bradycardia or the slower phase of a sinus arrhythmia), (4) an impulse from the SA node is generated and is conducted through the atria but is not conducted to the ventricles (such as an AV block).

The answer to question 5  Rhythm Regular.
Rate 40 to 60 beats/min.
P waves May occur before, during, or after the QRS; if visible, the P wave is inverted in leads II, III, and aVF.
PR interval If a P wave occurs before the QRS, the PR interval will usually be 0.12 sec or less; if no P wave occurs before the QRS, there will be no PR interval.
QRS duration 0.11 seconds or less unless abnormally conducted.
Johnwayne Author
wrote...
6 years ago
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