15. DSA Drugs Used in Cardiac Arrhythmias

Question 1

The following are what type of antiarrhythmic drugs?
Quinidine
Procainamide
Disopyramide

Answer 1

Class 1A Sodium Channel-blocking drugs

Question 2

The following are what type of antiarrhythmic drugs?
Lidocaine
Mexiletine

Answer 2

Class 1B Sodium Channel-Blocking Drugs

Question 3

The following are what type of antiarrhythmic drugs?
Flecainide
Propafenone

Answer 3

Class 1C Sodium Channel Blocking Drugs

*Class 1 drugs regulate rhythm

Question 4

The following are what type of antiarrhythmic drugs?
Esmolol
Propranolol

Answer 4

Class 2 Beta Blockers (regulate rate)

Question 5

The following are what type of antiarrhythmic drugs?
Amiodarone
Sotalol
Dofetilide
Ibutilide

Answer 5

Class 3 Potassium channel blocking drugs

Question 6

The following are what type of antiarrhythmic drugs?
Verapamil
Diltiazem

Answer 6

Class 4 cardioactive calcium channel blockers

Question 7

The following are what type of antiarrhythmic drugs?

Adenosine

Answer 7

Miscellaneous agents

Question 8

class 1A drugs are sodium channel blockers preferentially bind to what state of sodium channels?

Answer 8

activated state

Question 9

class 1B drugs are sodium channel blockers preferentially bind to what state of sodium channels?

Answer 9

inactivated state (depolarized damaged cells)

Question 10

class 1C drugs are sodium channel blockers preferentially bind to what state of sodium channels?

Answer 10

activated state