Deck 6: Ventricular Rhythms

Question 1

Identify the following rhythm (lead II): ____________________

Answer 1

Monomorphic ventricular tachycardia at 150 beats/min

Question 2

An idioventricular (ventricular escape)rhythm has an intrinsic rate of 40 to 60 beats/min.

Answer 2

False
An idioventricular rhythm (IVR),which is also called a ventricular escape rhythm,exists when three or more ventricular escape beats occur in a row at a rate of 20 to 40 beats/min (i.e.,the intrinsic firing rate of the Purkinje fibers).

Question 3

Transcutaneous pacing is the treatment of choice for pulseless ventricular tachycardia or ventricular fibrillation.

Answer 3

False
Cardiopulmonary resuscitation and defibrillation are the treatments of choice for pulseless ventricular tachycardia or ventricular fibrillation.

Question 4

Identify the following rhythm (lead II): ____________________

Question 5

What is meant by the term pulseless electrical activity (PEA)?

A) A chaotic rhythm that is likely to degenerate into cardiac arrest
B) An organized rhythm on the cardiac monitor (other than VT),although a pulse is not present
C) A slow rhythm with a wide QRS complex
D) A flat line on the cardiac monitor

Question 6

Identify the following rhythm (lead II): ____________________

Question 7

Medications to suppress an idioventricular rhythm should generally be avoided.

Question 8

The rate of an idioventricular rhythm is _____ beats/min.

A) 20 to 40
B) 41 to 60
C) 61 to 100
D) 101 to 180

Question 9

Complete the following ECG criteria for asystole:

Question 10

Identify the following rhythm (lead II): ____________________

Question 11

Identify the following rhythm (lead II): ____________________

Question 12

Identify the following rhythm (lead II): ____________________

Question 13

Sustained monomorphic VT is often associated with underlying heart disease,particularly myocardial ischemia,and rarely occurs in patients without underlying structural heart disease.

Question 14

How would you differentiate a junctional escape rhythm at 40 beats/min from a ventricular escape rhythm at the same rate?

A) It is impossible to differentiate a junctional escape rhythm from a ventricular escape rhythm.
B) The junctional escape rhythm will have a narrow QRS complex; the ventricular escape rhythm will have a wide QRS complex.
C) The rate (40 beats/min)would indicate a junctional escape rhythm,not a ventricular escape rhythm.
D) The junctional escape rhythm will have a wide QRS complex; the ventricular escape rhythm will have a narrow QRS complex.

Question 15

Identify the following rhythm (lead II): ____________________

Question 16

List four reasons why the ventricles may assume responsibility for pacing the heart.

Question 17

Which of the following best describes an accelerated idioventricular rhythm (AIVR)?

A) Rapid,chaotic rhythm with no pattern or regularity
B) Gradual alteration in the amplitude and direction of the QRS; atrial rate indiscernible,ventricular rate 150 to 250 beats/min
C) Regular ventricular rhythm with QRS complexes measuring 0.10 seconds or less; P waves may occur before,during or after the QRS; ventricular rate 41 to 60 beats/min
D) Essentially regular ventricular rhythm with QRS complexes measuring 0.12 seconds or greater; atrial rate not discernible; ventricular rate 41 to 100 beats/min

Question 18

Which of the following best describes an idioventricular rhythm?

A) Rapid,chaotic rhythm with no pattern or regularity
B) Gradual alteration in the amplitude and direction of the QRS; atrial rate indiscernible; ventricular rate 150 to 250 beats/min
C) Essentially regular ventricular rhythm with QRS complexes measuring 0.12 seconds or greater; atrial rate not discernible; ventricular rate 20 to 40 beats/min
D) Regular ventricular rhythm with QRS complexes measuring less than 0.10 seconds; P waves may occur before,during,or after the QRS; ventricular rate 40 to 60 beats/min

Question 19

The term premature ventricular complex is technically more correct than premature ventricular contraction.

Question 20

Complete the following ECG criteria for ventricular fibrillation:

Question 21

Identify the following rhythm (lead II): ____________________

Question 22

Complete the following ECG criteria for an idioventricular rhythm:

Question 23

Identify the following rhythm (lead II): ____________________

Question 24

Identify the following rhythm (lead II): ____________________

Question 25

Complete the following ECG criteria for monomorphic ventricular tachycardia:

Question 26

Identify the following rhythm (lead II): ____________________

Question 27

Complete the following ECG criteria for an accelerated idioventricular rhythm:

Question 28

List four common causes of premature ventricular complexes.

Question 29

Identify the following rhythm (lead II): ____________________

Question 30

What is the name given to polymorphic VT that occurs in the presence of a long QT interval?

Question 31

Identify the following rhythm (lead II): ____________________

Question 32

Identify the following rhythm (lead II): ____________________

Question 33

Identify the following rhythm (lead II): ____________________

Question 34

List three potential sites of origin of ectopic beats.

Question 35

Complete the following ECG criteria for polymorphic ventricular tachycardia:

Question 36

Identify the following rhythm (lead II): ____________________

Question 37

Identify the following rhythm (lead II): ____________________

Question 38

Identify the following rhythm (lead II): ____________________

Question 39

Identify the following rhythm (lead II): ____________________

Question 40

Identify the following rhythm (lead II): ____________________

Question 41

Identify the following rhythm: ____________________

Question 42

Identify the following rhythm (lead II): ____________________

Question 43

Identify the following rhythm (lead II): ____________________

Question 44

Identify the following rhythm (lead II): ____________________

Question 45

Identify the following rhythm: ____________________

Question 46

Identify the following rhythm (lead II): ____________________

Question 47

Identify the following rhythm (lead II): ____________________

Question 48

Identify the following rhythm: ____________________

Question 49

Identify the following rhythm (lead II): ____________________

Question 50

Identify the following rhythm (lead II): ____________________

Question 51

Identify the following rhythm (lead II): ____________________

Question 52

Identify the following rhythm (lead II): ____________________

Question 53

Identify the following rhythm (lead II): ____________________

Question 54

Identify the following rhythm (lead II): ____________________

Question 55

Identify the following rhythm (lead II): ____________________

Question 56

Identify the following rhythm (lead II): ____________________

Question 57

Identify the following rhythm: ____________________

Question 58

Identify the following rhythm (lead II): ____________________

Question 59

Identify the following rhythm (lead II): ____________________

Question 60

Identify the following rhythm (lead II): ____________________