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Pharm II > Chapter 25-Antidysrhthmic Drugs > Flashcards

Chapter 25-Antidysrhthmic Drugs Flashcards

1
Q

What is the mechanism of action for antidysrhythmic drugs?

A

They correct abnormal cardiac electrophysiologic function

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2
Q

What do class 1a antidysrhthmic drugs treat?

A

Atrial fibrillation,
premature atrial contraction,
premature ventricular contraction

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3
Q

What are the class 1A drugs?

A

Disopyramide,
Procainamide,
Quinidine

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4
Q

What do Class 1B antidysrhthmic drugs treat?

A

Ventricular dysrhythmias,

Atrial & Ventricular tackydysrhythmias

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5
Q

What are the Class 1B drugs?

A

Lidocaine-ventricular dysrhythmias only,

Phenytoin-atrial and ventricular tackydysrhythmias caused by digitalis toxicity or long QT syndrome

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6
Q

What are the Class 1C drugs?

A

Flecainide,

Propafenone

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7
Q

What do Class 1C antidysrhthmic drugs treat?

A

Ventricular tachycardia and supraventricular tachycardia dysrhythmias, atrial fibrillation and flutter

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8
Q

What do Class II antidysrhthmic drugs treat?

A

Supraventricular and ventricular dysrhythmias

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9
Q

What are the Class II drugs?

A

Beta Blockers…
Atenolol,
Esmolol,
Metoprolol

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10
Q

What are the Class III drugs?

A 
Amiodarone,
Dronedarone,
Dofetilide,
Ibutilide,
Sotalol
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11
Q

What do Class III antidysrhthmic drugs treat?

A

Life-threatening ventricular tachycardia or fibrillation, atrial fibrillation or flutter resistant to other drug therapy

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12
Q

What do Class IV antidysrhthmic drugs treat?

A

Paroxysmal supraventricular tachycardia

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13
Q

What are the Class IV drugs?

A

Calcium channel blockers…
Diltiazem ,
Verapamil

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14
Q

Which antidysrhythmic drug has the potential to cause systemic lupus?

A

Procainamide

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15
Q

Which antidysrhythmic drug can cause tinnitus and/or hearing loss?

A

Quinidine

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16
Q

Which antidysrhythmic drugs must be administered intravenously due to its first pass effect?

A

Lidocaine

17
Q

Which antidysrhythmic drug has the serious adverse effect of pulmonary toxicity and can be fatal. Presents with dyspnea and cough accompanied by damage to the alveoli

A

Amiodarone

18
Q

What are the two significant drug interactions for amiodarone?

A

Digoxin & Warfarin

19
Q

What is the primary nursing diagnosis for antidysrhythmic drugs?

A

Decreased cardiac output related to the pathology of the dysrhythmia

20
Q

Class I drugs are considered _____ _____ _____ _____

A

Fast sodium channel blockers

21
Q

Class IV drugs are _____ _____ _____

A

Calcium channel blockers

22
Q

This drug is used to convert paroxysmal superventricular tachycardia to sinus rhythm, it is administered as fast IV push, and can cause asystole for a few seconds

A

Adenosine

23
Q

What is the primary nursing diagnosis for antidysrhythmic drugs?

A

Decreased cardiac output related to the pathobiology of the dysrhythmia

Pharm II (8 decks)

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