Cardiology drugs

Question 1

What are class 2 antiarrhythmic drugs

Answer 1

Beta blockers

Question 2

What are class 3 antiarrhythmic drugs

Answer 2

Potassium channel blockers; act to prolong repolarisation in nodal/myocardial cells

Question 3

What are class 4 antiarrhythmic drugs

Answer 3

Calcium channel blockers; to slow conduction in nodal tissue

Question 4

What are some sodium channel blockers

Answer 4

Lidocaine
Mexiletine

Question 5

What are some beta blockers

Answer 5

Atenolol
Esmolol

Question 6

What are some potassium channel blockers

Answer 6

Sotalol
Amiodarone

Question 7

What drug is a calcium channel blocker

Answer 7

Diltiazem

Question 8

How does digoxin work

Answer 8

Na+/K+ ATPase pump inhibitor
Slows down SAN and AV node conduction and slow venitrcular rate
Good for atrial arrhythmias

Question 9

What do we tend to use sodium channel blockers to treat

Answer 9

Ventricular arrhythmias

Question 10

What do we use beta blockers to treat

Answer 10

Ventricular arrhythmias
Atrial arrhythmias

Question 11

What do we use K+ channel blockers to treat

Answer 11

Ventricular arrhthymias
Supraventricular arrhythmias

Question 12

What do we use calcium channel blockers to treat

Answer 12

Supraventricular arrhythmias; slows AV node conduction

Atrial arrthymias; via slowing ventricular rate

Question 13

What do we use digoxin for

Answer 13

Atrial arrhtyhmias (atrial fibrillation)

Question 15

What are class 1 antiarrhythmic drugs

Answer 15

Sodium channel blockers; to decrease phase 0 depolarisation in abnormal tisse