Deck 10: Rhythms Originating in the Ventricles

Question 1

The QRS interval of the ventricular beat is closest to

A)0.40 seconds.
B)0.80 seconds.
C)0.06 seconds.
D)0.20 seconds.

Answer 1

D

Question 2

For which of the following rhythms is electrical shock to the heart appropriate?

A)Ventricular tachycardia
B)Ventricular fibrillation
C)Asystole
D)All except C

Answer 2

D

Question 3

The rhythm in Figure 12 is

A)P wave asystole.
B)ventricular tachycardia.
C)ventricular fibrillation.
D)paced ventricular rhythm.

Answer 3

A

Question 4

The wide-QRS beat is a(n)

A)junctional escape beat.
B)ventricular escape beat.
C)PVC.
D)compensatory pause.

Question 5

The rhythm in Figure 15 is

A)agonal rhythm.
B)ventricular tachycardia.
C)torsades de pointes.
D)ventricular fibrillation.

Question 6

The heart rate in Figure 12 is

A)100.
B)20.
C)40.
D)zero.

Question 7

Idioventricular rhythm has a heart rate of

A)60-100.
B)greater than 100.
C)less than 20.
D)20-40.

Question 8

Ventricular fibrillation has

A)no P waves or QRS complexes.
B)P waves but no QRS complexes.
C)QRS complexes but no T waves.
D)P waves and QRS complexes.

Question 9

All the following are appropriate treatment for asystole EXCEPT

A)electrical shock to the heart.
B)CPR.
C)oxygen.
D)pacemaker.

Question 10

QRS complexes in ventricular rhythms are

A)wide and bizarre.
B)always absent.
C)found preceding the P waves.
D)found following the T waves.

Question 11

The rhythm in Figure 11 is

A)atrial fibrillation.
B)atrial flutter.
C)sinus rhythm with a burst of PAT.
D)sinus rhythm converting to ventricular tachycardia.

Question 12

Following PVCs is usually a(n)

A)complete compensatory pause.
B)incomplete compensatory pause.
C)escape beat.
D)tall,pointy P wave.

Question 13

The rhythm in Figure 13 is

A)atrial flutter.
B)ventricular fibrillation.
C)atrial tachycardia.
D)ventricular tachycardia.

Question 14

The rhythm in Figure 14 is

A)ventricular tachycardia.
B)accelerated idioventricular rhythm.
C)sinus rhythm with PVCs.
D)accelerated junctional rhythm.

Question 15

Torsades de pointes means

A)torsion of the points.
B)twisting of the points.
C)tall,pointy T waves.
D)spiked P waves.

Question 16

Treatment for torsades de pointes can include all the following EXCEPT

A)overdrive pacing.
B)magnesium.
C)electrical shock to the heart.
D)atropine.

Question 17

The heart rate in Figure 14 is closest to

A)150.
B)100.
C)75.
D)60.

Question 18

PVCs are

A)premature ventricular complexes.
B)ventricular escape beats.
C)slow ventricular rhythms.
D)post-ventricular compensatory pauses.

Question 19

In Figure 12,there are only

A)P waves.
B)QRS complexes.
C)T waves.
D)U waves.

Question 20

The rhythm is

A)sinus rhythm with occasional PACs.
B)sinus bradycardia with PVC.
C)sinus rhythm with a sinus arrest and a ventricular escape beat.
D)idioventricular rhythm.

Question 21

Which of the following most accurately describes the appearance of fusion beats?

A)All fusion beats resemble sinus beats.
B)All fusion beats resemble premature ventricular complexes.
C)All fusion beats resemble a hybrid of sinus beats and premature ventricular complexes.
D)Some fusion beats resemble sinus beats and some resemble premature ventricular complexes.

Question 22

All ventricular rhythms are life-threatening.

Question 23

Treatment for the rhythm in Figure 16 would include which of the following?

A)Electrical shock to the heart
B)Atropine
C)Digitalis
D)Oxygen removal

Question 24

PVCs are usually followed by an incomplete compensatory pause.

Question 25

In asystole,the cardiac output is

A)zero.
B)greater than in ventricular fibrillation.
C)enhanced by electrical shock to the heart.
D)not affected.

Question 26

Torsades de pointes can be treated with magnesium.

Question 27

Ventricular fibrillation can be caused by

A)heart attack.
B)drowning.
C)drug overdoses.
D)all of the above.

Question 28

Ventricular tachycardia has a heart rate of

A)greater than 100.
B)60-100.
C)40-60.
D)20-40.

Question 29

Asystole is best treated with electrical shock to the heart.

Question 30

Idioventricular rhythm is usually a result of usurpation.

Question 31

PVCs are a sign of ventricular irritability.

Question 32

Multifocal couplets are

A)long runs of ventricular tachycardia.
B)a pair of PVCs that look the same.
C)a pair of PVCs that look different.
D)reason to start CPR.

Question 33

The rhythm in Figure 16 is

A)ventricular tachycardia.
B)ventricular fibrillation.
C)accelerated idioventricular rhythm.
D)asystole.

Question 34

Ventricular tachycardia is usually a result of escape.

Question 35

Ventricular fibrillation has what effect on the cardiac output?

A)No effect
B)Causes an increase
C)Causes a decrease
D)Causes cardiac output to stop completely

Question 36

PVCs are premature beats from the ventricle.

Question 37

In P wave asystole,there are

A)no P waves or QRS complexes.
B)P waves but no QRS complexes.
C)no waves of any kind.
D)P waves and QRS complexes but no T waves.

Question 38

What causes fusion beats?

A)Depolarization of the ventricle by a sinus impulse that coincides with polarization by a premature ventricular impulse
B)Polarization of the ventricle by a sinus impulse that coincides with depolarization by a premature ventricular impulse
C)Simultaneous depolarization of the ventricle by a sinus impulse and a premature ventricular impulse
D)Simultaneous polarization of the ventricle by a sinus impulse and a premature ventricular impulse

Question 39

Multifocal PVCs are those that

A)have different shaped P waves preceding them.
B)have different shaped QRS complexes.
C)come from the same focus.
D)resemble each other.

Question 40

Dying heart is another name for

A)idioventricular rhythm.
B)accelerated idioventricular rhythm.
C)agonal rhythm.
D)asystole.

Question 41

P wave asystole differs from asystole in that P wave asystole has P waves; asystole is ________.

Question 42

Ventricular bigeminy is a term that means the PVCs occur every ________ beat.

Question 43

Two consecutive PVCs are called a ________.

Question 44

Agonal rhythm has a heart rate less than ________.

Question 45

PVC stands for ________.

Question 46

QRS complexes in ventricular rhythms should be ________ seconds wide.

Question 47

Defibrillation is the treatment of choice for ventricular fibrillation.

Question 48

The treatment of choice for ventricular fibrillation is ________.

Question 49

Asystole is usually a terminal event.

Question 50

Name three ventricular rhythms that can be treated by electrical shock to the heart.

Question 51

Accelerated idioventricular rhythm has a heart rate between ________.

Question 52

Torsades de pointes is a form of ventricular tachycardia that ________ around an axis.