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27 Cards in this Set
- Front
- Back
What is Class 1 antidysrhythmic drugs?
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Sodium Channel Blockers
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What is Class 2 antidysrhythmic drugs?
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Beta Blockers
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What is Class 3 antidysrhythmic drugs?
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Potassium Channel Blockers
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What is Class 4 antidysrhythmic drugs?
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Calcium Channel Blockers
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What is Class 5 antidysrhythmic drugs?
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Digoxin and Adenosine
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Supraventricular dysrhythmias are especially harmful.
T or F |
False
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Atrial Fibrillation carries a risk of ___.
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Stroke
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What is the prototype of Class IA drugs?
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Quinidine
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What are the actions of Quinidine?
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Slows impulse conduction
Delays repolarization (QRS and QT widening) |
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Quinidine blocks vagal nerve impulses and can increase heart rate.
T or F |
True, pretreated before using drug
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What are the adverse effects of Quinidine?
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Diarrhea
Cinchonism Cardiotoxicity (More than 50% widening of QRS and excessive prolonged QT complex) |
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What are the interactions to Quinidine?
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Digoxin
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What drug is similar to Quinidine?
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Procainamide
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What side effects are unique to Procainamide?
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Systemic Lupus Erythematosus-like Syndrome
Blood Abnormalities |
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What is the difference between IA and IB Class drugs?
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IB accelerates repolarization
IA delays repolarization |
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What is the prototype of Class IB drugs?
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Lidocaine
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Lidocaine is a ______.s the
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Class IB drug
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Phenytonin is used to treat ___.
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Digoxin induced dysrhythmias
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Class IA and IC drugs are very similar.
T or F |
True
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What are the IC drugs?
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Flecainide
Propafenone |
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What is a prototype Class III drug?
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Bretylium
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What is the most significant adverse effect of Bretylium?
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Profound Hypotension
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What is the oral long-term Class III agent?
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Amiodarone
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What are the adverse effects of Amiodarone?
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Lung Damage
Heart Toxicity Corneal Microdeposits |
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Sotalol also have Potassium Blocking actions as well as being a beta-blocker.
T or F |
True
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Adenosine is used to _____.
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terminate sustained ventricular tachycardia
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How is Adenosine given?
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IV Bolus near heart
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