NURS 3331 Chapter Notes - Chapter 49: Lovastatin, Paroxysmal Attack, Constipation
Document Summary
An abnormality in the rhythm of the heartbeat (also known as arrhythmia) Virtually all drugs that treat dysrhythmias can also cause dysrhythmias. Provides a graphic representation of cardiac electrical activity. Three other components pr interval qt interval st segment. Disturbances of automaticity can occur in any part of the heart. Slows conduction in the atria, ventricles, and his-purkinje. Reduces automaticity in the ventricles and his-purkinje system. Only four approved for treating dysrhythmias: propranolol, acebutolol, esmolol, sotalol. Decreased velocity of conduction through the av node. Lovastatin, simvastatin, atorvastatin levels can be increased by: grapefruit juice inhibitors of cyp3a4 levels can be reduced by: cholestyramine. The risk of severe dysrhythmias is increased by: diuretics drugs that prolong the qt interval. Combining amiodarone with a beta blocker, verapamil, or diltiazem. Terminate svt caused by an av nodal reentrant circuit. Increased risk when combined with a beta blocker. Also used to treat supraventricular dysrhythmias (inactive against ventricular dysrhythmias)
