Which of the following most accurately differentiates cardioversion from defibrillation?
A) Cardioversion is timed to be synchronous with the patient's R wave.
B) Cardioversion requires fewer than 100 joules.
C) The electrical stimulation of cardioversion travels at a slower rate through the myocardium.
D) Cardioversion cannot be used in patients who have a pulse.

Question

Quizplus · Accepted Answer

Cardioversion is timed to be synchronous with the patient's R wave, which means that the electrical shock is delivered to the heart during a specific part of the cardiac cycle. This is different from defibrillation, which is delivered asynchronously and does not rely on timing with the R wave. Additionally, while the energy delivered during cardioversion can vary, it is typically higher than 100 joules, so option B is incorrect. The rate of electrical stimulation during cardioversion is not necessarily slower than during defibrillation, so option C is also incorrect. Finally, cardioversion may be used in patients who have a pulse, particularly if they are experiencing arrhythmias such as atrial fibrillation or flutter.

Which of the Following Most Accurately Differentiates Cardioversion from Defibrillation