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Pharm exam 2 > Antiarrhythmic drugs for Tachy- and Bradyarrhythmias > Flashcards

Antiarrhythmic drugs for Tachy- and Bradyarrhythmias Flashcards

1
Q

Class IA

A

Prolongs action potential
Quinidine
Procainamide
Disopyramide

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2
Q

Class IB

A 
Shortens action potential
Lidocaine
Phenytoin
Tocainide
Mexiletine
Aprinidine
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3
Q

Class IC

A

No effect on action potential
Flecainide
Encainide
Lorcainide

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4
Q

Class II

A 
Beta blockers
Propanolol
Timolol
Pinololol
Oxyprenolol
Alprenolol
Atenolol
Esmolol
Metoprolol
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5
Q

Class III

A

Potassium channel blockers
Bretylium
Amiodarone
Sotalol (nonselective Beta blocker)

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6
Q

Class IV

A

Calcium channel blockers
Verapamil
Diltiazem

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7
Q

Therapeutic uses of Quinidine

A

Ventricular arrhythmias

Atrial fibrillation in horses (drug of choice), cattle, and large breed dogs

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8
Q

Therapeutic use of Procainamide

A

More effective for ventricular arrhythmias than atrial arrhythmias

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9
Q

Therapeutic uses of Lidocaine

A

The intravenous drug of choice for ventricular arrhythmias due to general anesthetics, surgery, ischemia, and trauma
Digitalis-induced arrhythmias

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10
Q

Therapeutic uses of Phenytoin

A

Digitalis-induced arrhythmias in dogs only

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11
Q

Therapeutic uses of Propanolol

A

Paroxysmal supraventricular tachycardia
Digitalis-induced tachyarrhythmias
Arrhythmias due to inhalation anesthesia

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12
Q

Therapeutic use of Bretylium

A

Refractory and recurrent tachyarrhythmias

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13
Q

Therapeutic uses of Verapamil and Diltiazem

A

Supraventricular tachyarrhythmias

Myocardial hypertropy

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14
Q

Supraventricular tachyarrhythmias in dogs

-Atrial tachycardia treatment

A

Digoxin
Procainamide, propanolol
Quinidine, phenytoin

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15
Q

Supraventricular tachyarrhythmias in dogs

-Atrial flutter

A

Digoxin

Quinidine, procainamide, propanolol

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16
Q

Supraventricular tachyarrhythmias in dogs

-Atrial fibrillation

A

Digoxin
Propanolol
Quinidine, procainamide

17
Q

Ventricular tachyarrhythmias

-Ventricular premature complexes

A

Quinidine, procainamide, lidocaine
Phenytonin
Propranolol

18
Q

Ventricular tachyarrhythmias

-Ventricular tachycardia

A

Procainamide, lidocain
Quinidine, phenytonin
Propranolol

19
Q

Treatment of tachyarrhythmias in cats

A

Beta-blockers

The drugs of choice for both supraventricular and ventricular tachyarrhythmias

20
Q

Antiarrhythimc drugs for bradyarrhythmias

A

Atropine
Isoproterenol
Epinephrine

21
Q

Treatment of bradyarrhythmias

-Sinus bradycardia

A

Atropine

Isoproterenol

22
Q

Treatment of bradyarrhythmias

-Second-degree AV block

A

Atropine
Isoproterenol
Glucagon

23
Q

Treatment of bradyarrhythmias

-Cardiac asystole (cardiac resuscitation)

A

Epinephrine

Pharm exam 2 (12 decks)

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