Deck 8: Introducing the Atrial Rhythms

Question 1

The reactivation of myocardial tissue for a second or subsequent time by the same electrical impulse is called:

A) reentry.
B) torsades de pointes.
C) antigrade.
D) sustained.

Answer 1

A

Question 2

For a rhythm to be termed a wandering atrial pacemaker (WAP) there must be an observation of at least ________ different P waves.

A) 1
B) 2
C) 3
D) 6

Answer 2

C

Question 3

When every other beat in a cardiac rhythm is an ectopic beat, this is referred to as a:

A) bigeminy rhythm.
B) trigeminy rhythm.
C) quadgeminy rhythm.
D) couplet rhythm.

Answer 3

A

Question 4

Most often, MAT is observed in the patient with all of the following EXCEPT:

A) chronic obstructive pulmonary disease.
B) digoxin toxicity.
C) electrolyte imbalances.
D) paced patients.

Question 5

An irregular muscle connection between the atria and the ventricles that bypass the AV node is called an:

A) accessory pathway.
B) universal pathway.
C) central pathway.
D) group pathway.

Question 6

In the rhythm in number 16, when a ventricular rate is less than 60, it is referred to as:

A) rapid ventricular response.
B) severe ventricular response.
C) morbid ventricular response.
D) slow ventricular response.

Question 7

When the pacemaker sites wander, or travel, from the SA node to other pacemaker sites in the atria, the internodal pathways, or the AV node, are called:

A) difficult atrial pacemakers.
B) universal atrial pacemakers.
C) wandering pacemakers.
D) unifocal pacemakers.

Question 8

The use of vagal maneuvers, adenosine, and synchronized cardioversion are all treatment modalities for:

A) bradycardia.
B) supraventricular tachycardia.
C) sinus tachycardia.
D) ventricular bradycardia.

Question 9

Atrial fibrillation is often associated with all of the following EXCEPT:

A) hypoxia.
B) myocardial ischemia.
C) digitalis toxicity.
D) good electrolyte balances.

Question 10

A single, electrical impulse that originates outside the SA node in the atria is known as:

A) premature atrial complex.
B) premature ventricular complex.
C) premature sinus complex.
D) premature antigrade complex.

Question 11

When every third beat in a cardiac rhythm is an ectopic beat, this is referred to as a:

A) quadgeminy rhythm.
B) trigeminy rhythm.
C) bigeminy rhythm.
D) reentry rhythm.

Question 12

When an ectopic complex causes the underlying rhythm or cadence of the heart to be interrupted, this is called:

A) complete pause.
B) noncompensatory pause.
C) compensatory pause.
D) irregular pause.

Question 13

In the rhythm in number 16, when a ventricular rate is between 100 and 150 beats per minute, it is referred to as:

A) rapid ventricular response.
B) slow ventricular response.
C) reentry ventricular response.
D) supraventricular response.

Question 14

Vagal maneuvers are used to:

A) improve AV conduction.
B) reduce ventricular irritability.
C) dilate coronary arteries.
D) slow the heart rate.

Question 15

The ________ rhythm is created when the rate of the WAP reaches 100 beats per minute or greater.

A) unifocal atrial tachycardia
B) multifocal atrial tachycardia
C) accessory atrial tachycardia
D) junctional atrial tachycardia

Question 16

When any premature beat occurs more than six times per minute, the dysrhythmia assumes more importance and is called:

A) normal.
B) irregular.
C) variable.
D) frequent.

Question 17

The rhythm that is produced when multiple disorganized ectopic atrial foci generate electrical activity at a very rapid rate and is irregular is atrial:

A) reentry rhythm.
B) flutter rhythm.
C) response rhythm.
D) fibrillation rhythm.

Question 18

The group of dysrhythmias that is produced when the SA node fails to generate an impulse and the atrial tissues and/or areas in the internodal pathway initiate an impulse are known as:

A) accessory pathways.
B) atrial arrhythmias.
C) atrial dysrhythmias.
D) multifocal rhythms.

Question 19

The rhythm that is characterized by the presence of regular atrial activity with a picket-fence or sawtooth pattern is known as atrial:

A) fibrillation rhythm.
B) flutter rhythm.
C) reentry rhythm.
D) sustained rhythm.

Question 20

The goal of therapy in the fibrillation rhythm with a rapid ventricular response is to:

A) slow the response.
B) make the response stronger.
C) increase the response.
D) weaken the response.

Question 21

Wolff-Parkinson-White syndrome is characterized by which of the following?

A) Delta waves
B) Flutter waves
C) Fib waves
D) Alpha waves

Question 22

When the baroreceptors are stimulated, the vagus nerve releases ________, resulting in slowing of the heart rate.

A) norepinephrine
B) epinephrine
C) acetylcholine
D) cholinergic

Question 23

The term that indicates the final phase of diastole, when the atrial contraction forces remaining blood into the ventricles, is atrial:

A) kick.
B) preload.
C) post load.
D) slap.

Question 24

The term "supraventricular" describe which of the following?

A) Sudden onset and/or cessation of the ventricles
B) Rhythm that arises from above the ventricles
C) Rhythm that arises from below the ventricles
D) Rhythm that retrogrades through the ventricles

Question 25

The term that refers to the sudden onset or cessation or both of a cardiac rhythm is:

A) supraventricular.
B) paradoxical.
C) pathologic.
D) paroxysmal.

Question 26

SVT may occur in a healthy person and can result from all of the following EXCEPT:

A) overexertion.
B) hypoxia.
C) hypokalemia.
D) hypoglycemia.