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21 Cards in this Set
- Front
- Back
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Sodium channel blockers 1a |
Disopyramide, quinidine, procainamide |
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sodium channel blocker 1b |
Mexiletine, tocanide, lidocaine, phenytoin |
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Sodium channel blocker 1c |
Flecainide, propafenone |
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Beta blockers II |
Propranolol, acebutolol, emsolol |
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Potassium channel blockers III |
Bretylium, amiodarone |
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Calcium channel blockers |
Verapamil diltiazam |
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Amiodarone |
Class III Prolonged action potential |
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Lidocaine |
Class I b Slows depolarization and automaticity when given in overdose it can have significantCentral Nervous System side effects such as tinnitus, confusion, and convultions |
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Procainamide |
Class I a Reduces automaticity and av conduction intended for treatment of a fib with rabip ventricular response and ventricular arrythmias |
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Phenytoin aka dilation |
Depresses av conduction and automaticity |
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Adenosine |
Slows av conduction |
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Emsolol |
Class II Beta blocker Slows heart rate through selective blockade of b I receptors |
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Labatelol |
Class II Lowers blood pressure through no selective blockade of b receptors |
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Diltiazem |
Class IV Lowers blood pressure by relaxing vascular smooth muscle |
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Magnesium sulfate |
Electrolyte Bronchodilator |
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what do sodium channel blockers do? |
they affect the rate at which impulses travel down the conduction system of the atria and ventricles Does NOT affect SA and AV node |
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what do class 1a sodium channel blockers do? |
Slows conduction Decreases repolarization rate Widens QRS Prolongs QT
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Quinidine |
sodium channel blocker class 1 a Reduces automaticity and av conduction intended for treatment of a fib with rapid ventricular response and ventricular arrhythmia's can induce unintended tachycardia's |
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what do sodium channel blockers class 1b do? |
increase rate of repolarization, Decreases automaticity in ventricular cells |
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what do sodium channel blockers class c do? |
decreases conduction velocity through atria and ventricles and through bundle of his and purkinje system = delayed ventricular repolarization |
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what do beta blockers do? |
indicated for treatment of tachycardia's resulting from excessive sympathetic stimulation. |
