Question 1

Match the following junctional rhythms with the appropriate heart rate. beats per minute dysrhythmiasjunctional tachycardia:
-junctional tachycardia

Accepted Answer

A)  less than 41
B)  40 to 61
C)  60 to 101
D)  100 to 181E) A) and B)
F) A) and C)

Question 2

P waves resulting from impulses that originate outside the SA node are called:

Accepted Answer

A)   P neutral
B)   R'
C)   P prime
D)   Retro PE) A) and D)
F) B) and D)

Question 3

PJCs are thought to result from enhanced automaticity or a reentry mechanism.

Accepted Answer

A) True 
 B)False

Question 4

Junctional escape rhythm with a rate of less than 50 beats per minute is usually well tolerated.

Accepted Answer

A) True 
 B)False

Question 5

Junctional tachycardia has:

Accepted Answer

A)   an irregular rhythm.
B)   a rate of between 60 and 180 beats per minute.
C)   inverted QRS complexes.
D)   P'R intervals of less than 0.12 seconds.E) A) and B)
F) None of the above

Question 6

Initial treatment of unstable junctional tachycardia includes:

Accepted Answer

A)   administering atropine.
B)   administering beta blockers.
C)   treating the underlying cause.
D)   delivering synchronized cardioversionE) All of the above
F) B) and C)

Question 7

Accelerated junction rhythm has:

Accepted Answer

A)   a regular rhythm.
B)   T waves that take the opposite direction to the QRS complexes.
C)   wide QRS complexes.
D)   P'R intervals of greater than 0.20 seconds.E) A) and D)
F) All of the above

Question 8

In AVNRT:

Accepted Answer

A)   accessory conduction pathways exist between the atria and ventricles that bypass the AV node and bundle of His and allow the atria to depolarize the ventricles earlier than usual.
B)   increased automaticity causes the AV node to discharge at an abnormally fast rate.
C)   fast and slow pathways located within the right atrium in close proximity to or within the AV node allow for development of SVT.
D)   the ventricles discharge at an abnormally fast rate and depolarize the AV node in a retrograde fashion.E) A) and B)
F) A) and C)

Question 9

Your patient is experiencing hypotension and lightheadedness as a result of a heart rate of 40 beats per minute. You attach the ECG monitor to see a slow, regular rhythm with an inverted P' wave immediately preceding each narrow, upright QRS complex. You note the P'R intervals are 0.10 seconds in duration. This patient is experiencing:

Accepted Answer

A)   sinus bradycardia.
B)   accelerated junctional rhythm.
C)   wandering atrial pacemaker.
D)   junctional escape rhythm.E) A) and B)
F) A) and D)

Question 10

When premature junctional complexes occur the first thing you see as you look across the ECG tracing is/are:

Accepted Answer

A)   an irregular rhythm.
B)   inverted P' waves.
C)   compensatory pauses.
D)   wide, bizarre shaped QRS complexes.E) B) and C)
F) A) and C)

Exam 13: Origin and Clinical Aspects of Junctional Dysrhythmias

PJCs are thought to result from enhanced automaticity or a reentry mechanism.

Correct Answer
verified

When premature junctional complexes occur the first thing you see as you look across the ECG tracing is/are:

Correct Answer
verified

Match the following junctional rhythms with the appropriate heart rate. beats per minute dysrhythmiasjunctional tachycardia: -junctional tachycardia

Correct Answer
verified

In AVNRT:

Correct Answer
verified

P waves resulting from impulses that originate outside the SA node are called:

Correct Answer
verified

Correct Answer
verified

Accelerated junction rhythm has:

Correct Answer
verified

Initial treatment of unstable junctional tachycardia includes:

Correct Answer
verified

Junctional tachycardia has:

Correct Answer
verified

Junctional escape rhythm with a rate of less than 50 beats per minute is usually well tolerated.

Correct Answer
verified

Exam 13: Origin and Clinical Aspects of Junctional Dysrhythmias

PJCs are thought to result from enhanced automaticity or a reentry mechanism.

Correct AnswerverifiedShow Answer

When premature junctional complexes occur the first thing you see as you look across the ECG tracing is/are:

Correct AnswerverifiedShow Answer

Match the following junctional rhythms with the appropriate heart rate. beats per minute dysrhythmiasjunctional tachycardia: -junctional tachycardia

Correct AnswerverifiedShow Answer

In AVNRT:

Correct AnswerverifiedShow Answer

P waves resulting from impulses that originate outside the SA node are called:

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Accelerated junction rhythm has:

Correct AnswerverifiedShow Answer

Initial treatment of unstable junctional tachycardia includes:

Correct AnswerverifiedShow Answer

Junctional tachycardia has:

Correct AnswerverifiedShow Answer

Junctional escape rhythm with a rate of less than 50 beats per minute is usually well tolerated.

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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