Which action should the nurse perform when preparing a patient with supraventricular tachycardia for cardioversion who is alert and has a blood pressure of 110/66 mm Hg?
a. Turn the synchronizer switch to the "off" position.
b. Give a sedative before cardioversion is implemented.
c. Set the defibrillator/cardioverter energy to 360 joules.
d. Provide assisted ventilations with a bag-valve-mask device.
ANS: B
When a patient has a nonemergency cardioversion, sedation is used just before the procedure. The synchronizer switch is turned "on" for cardioversion. The initial level of joules for cardioversion is low (e.g., 50). Assisted ventilations are not indicated for this patient.
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