A nurse is teaching a group of nursing students about antidysrhythmic medications. Which statement by a student indicates understanding of the teaching?
a. "Antidysrhythmic drugs can cause new dysrhythmias or worsen existing ones."
b. "Adverse effects of these drugs are mainly noncardiac in nature."
c. "For most antidysrhythmic drugs, there is evidence of reduced mortality."
d. "Use of these drugs may be necessary even if the benefits are unknown."
A
Because antidysrhythmic drugs have prodysrhythmic actions, they can exacerbate existing dys-rhythmias or generate new ones. Most adverse effects are cardiac related. There is evidence of increased mortality with many of these drugs. Use of these drugs should be limited to situations in which there is a clear benefit and only if that benefit outweighs any risks.
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