Med Surg Cardiac Med Note Part 1

Med Surg: Cardiac Med Notes: Part 1 Prodysrhythmia - answer>>>development of a new, or reappearance of an existing, dysrhythmia when an antidysrhythmic drug is administered and the drug level is not a toxic level What cardiac med decreases impulse conduction in the atria, ventricles, and His-Purkinje system - answer>>>Class I: Sodium channel blockers What cardiac meds delay repolarization and are seen as a widened QRS and prolonged QT interval on a ECG - answer>>>Class IA - Disopyramide (Norpace) - Procainamide - Quinidine What cardiac meds accelerate repolarization and have little to no effect on an ECG - answer>>>Class IB - Lidocaine - Mexiletine - Phenytoin (Dilantin) What cardiac meds decrease impulse conduction and have pronounced prodysrhythmic actions, widen QRS, and a prolong Qt interval - answer>>>Class IC - Flecainide - Propafenone (Rythmol) What cardiac meds decrease automaticity of the SA node, slow impulse conduction in AV node, reduce atrial and ventricular contractility and is seen as bradycardia, prolonged PR interval, and AV block - answer>>>Class II: beta-adrenergic blockers - esomolol (brevibloc) - metoprolol (Lopressor) - propranolol (Inderal)what cardiac meds delay repolarization resulting in prolonged duration of action potential and refractory period and is seen as a Prolonged PR an QT