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27 Cards in this Set

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