During a CPR, class a student in the class asks what the difference is between cardioversion and defibrillation. What would be the nurse's best response?
A) "Cardioversion is done on a beating heart, defibrillation is not."
B) "The difference is the timing of the delivery of the electric current."
C) "Defibrillation is synchronized with the electrical activity of the heart, cardioversion is not."
D) "Cardioversion is always attempted before defibrillation because it is not as dangerous."
Ans: B
Feedback: One major difference between cardioversion and defibrillation is the timing of the delivery of electrical current. In cardioversion, the delivery of the electrical current is synchronized with the patient's electrical events; in defibrillation, the delivery of the current is immediate and unsynchronized. Therefore, options A, C, and D are incorrect.
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