Deck 25: Treatment of Arrhythmia

Question 1

The prototype Class IA antiarrhythmic that has been widely used since the 1920s is _____.

A)digoxin
B)quinidine
C)verapamil
D)amiodarone

Answer 1

B
Quinidine is the prototype Class IA antiarrhythmic and has been widely used since the 1920s.

Question 2

Which of the following is not a Class III antiarrhythmic agent?

A)amiodarone
B)bretylium
C)sotalol
D)lidocaine

Answer 2

D
Amiodarone,bretylium,and sotalol are Class III antiarrhythmic agents.

Question 3

MATCHING
Match the following drug with their properties:
a.beta blockers
b.calcium channel blockers
c.miscellaneous
d.act on sodium channels
e.act on potassium channels
Class I agents

Answer 3

D

Question 4

What is not one reason for why arrhythmias occur?

A)when the cardiac ion exchange channels function improperly
B)when inflammation is present
C)when cardiac blood vessels are dilated
D)when there is oxidative stress

Question 5

Atrial fibrillation in not life threatening,so it is not a risk factor for stroke.

Question 6

Atrial flutter refers to a heart rate of 100 to 300 beats per minute.

Question 7

MATCHING
Match the following drug with their properties:
a.beta blockers
b.calcium channel blockers
c.miscellaneous
d.act on sodium channels
e.act on potassium channels
digoxin and phenytoin

Question 8

MATCHING
Match the following drug with their properties:
a.beta blockers
b.calcium channel blockers
c.miscellaneous
d.act on sodium channels
e.act on potassium channels
Class IV agents

Question 9

_____ is approved for the treatment of atrial fibrillation.It reduces arrhythmias by slowing the conduction velocity and prolonging the refractory period in the Purkinje fibers and AV node.

A)Dilantin
B)Digoxin
C)Dopamine
D)Dobutamine

Question 10

MATCHING
Match the following drug with their properties:
a.beta blockers
b.calcium channel blockers
c.miscellaneous
d.act on sodium channels
e.act on potassium channels
Class III agents

Question 11

All antiarrhythmic agents can cause other arrhythmias.

Question 12

The current focus of arrhythmia management is _____.

A)cure
B)prevention
C)eradication
D)cardioversion

Question 13

Ventricular fibrillation is life threatening and cannot be reversed by cardioversion.

Question 14

Class I agents act on __________channels and slow the rate of depolarization.

A)sodium
B)calcium
C)potassium
D)magnesium

Question 15

The process of returning the cells to their resting state is called:

A)depolarization
B)repolarization
C)refractory period
D)polarization

Question 16

In what type of patients is Class II antiarrhythmics (ß-blockers)contraindicated?

A)patients with asthma
B)patients diabetes
C)patients with heart failure
D)all of the above

Question 17

The only class of drugs indicated for primary management of ventricular arrhythmias is _____ blockers.

A)alpha
B)beta
C)calcium channel
D)none of the above

Question 18

MATCHING
Match the following drug with their properties:
a.beta blockers
b.calcium channel blockers
c.miscellaneous
d.act on sodium channels
e.act on potassium channels
Class II agents

Question 19

Ventricular fibrillation is the leading cause of sudden cardiac death in the US and Europe each year.