Anti-dysrhythmias

Question 1

Name a drug from class Ia and its function?

Answer 1

Quinidine, Disopyramide, procaine

Supraventricular/ventricular dysrhythmias

Question 2

Name a drug from class Ib and its function?

Answer 2

Lidocaine

Ventricular tachycardia

Question 3

Name a drug from class Ic and its function?

Answer 3

Flecanide

Atrial fibrillation and re-entrant circuits

Question 4

Name a drug from class II and its function?

Answer 4

Atenolol, bisoprolol, propanolol

Used for ventricular extrasystoles, long QT syndromes

Question 5

Name a drug from class III and its function?

Answer 5

Sotalol, amiodarone
K+ channel activators to increase refractory period and action potential, used for wolf-parkinson white re-entry circuits.

Question 6

Name a drug from class IV and its function?

Answer 6

Verapamil, diatelizm, Amlopine,
Slow AV conduction, reduce pacemaker activity, reduce slow inward Ca2+, shorten the platau phase.
Used for supraventricular tachycardia and atrial fibrillation

Question 7

Who is contraindicated in class 1c drugs?

Answer 7

Heart drugs

Question 8

Which class of drugs is used to treat wolf-parkinson white re-entry circuits?

Answer 8

K+ activators such as amiodarole, or sotalol

Question 9

What is adenosine used for

Answer 9

Blocks calcium channels and increased K+ permeability

Question 10

What can be used to prevent cardiac arrest?

Answer 10

Implantation cardioverters that provide the shock

Question 11

What is the first choice therapy for long QT syndromes?

Answer 11

Beta blockers