-
What is Class 1 and what are some examples?
- Na Channel Blockers
- Procainamide
- Lidocaine
-
What is Class 2 and what are some examples?
Beta-Receptor Blockers
-
What is Class 3 and what are some examples?
- Potassium Channel Blockers
- Amiodarone
- Sotalol
-
What is Class 4 and what are some examples?
- Calcium Channel Blockers
- Verapamil
- Ditiazem
-
Which Anti-Arrthymic drug has a long half life?
Amiodarone
-
Adenosine
- 10 second half life
- Vasodilate
- Decrease HR
- Decrease AV nodal conduction
- Cholinergic effect
- Treats SVT
-
Atropine
- Anticholinergic Drug
- Blocks muscarinic drugs
- Increase HR and AV nodal conduction
-
Procainamide
- Class 1 Anti-Arrhthmic drug
- Sodium channel blocker
- Creates reversible lupus related symptoms
-
Lidocaine
- Class 1 Drug
- Sodium channel blocker
- More toxic than Procainamide and rarely used
-
What causes supraventricular tachycardia?
Reentry
-
Verapamil
- Class 4 drug
- Calcium channel blocker
- Decrease contractility, HR, conduction velocity
- Smooth muscle relaxation
- Vasodilation
- Alternative to adenosine in treating SVT
-
Diltiazem
- Class 4 drug
- Calcium channel blocker
- Decrease contractility, HR, conduction velocity
- Smooth muscle relaxation
- Vasodilation
- Alternative to adenosine in treating SVT
-
-dipines
Arterial vasodilators
-
A-Fib Therapeutic Goals
- Control ventricular rate (IV diltiazem)
- Terminate arrhythmia
- Prevent recurrences
- Prevent thromboembolism (stroke)
-
What is an adverse drug reaction to a Class III antiarrhythimic drug?
- V-tach or Torsades de Pointes
- V-fib and death
-
Treating Torsades de Pointes
- Magnesium
- Suppresses early afterdepolarizations
- Terminates the arrhythmia
-
How does the tx of magnesium work?
- Decreases influx of calcium
- Thus lowering the amplitude of Early Afterdepolarization
-
-
Treating Bradycardia
- Atropine
- Dopamine
- Epinephrine
-
Treating V-Tach/ V-Fib
- Amiodarone
- Procainamide
- Lidocaine
- (Magnesium Sulfate - TdP)
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