What would be the priority intervention for the care of the client who is pulseless and has the following rhythm on the monitor?

A. CPR: Cardiopulmonary resuscitation is essential for maintaining circulation in a pulseless client and should be started immediately; however, CPR alone does not treat the underlying lethal arrhythmia. It serves as supportive care while definitive interventions, like defibrillation, are prepared. B. Defibrillator: Defibrillation is the priority intervention for pulseless ventricular tachycardia because this is a shockable rhythm. Immediate delivery of an unsynchronized electrical shock can depolarize the myocardium, terminate the arrhythmia, and allow the heart’s natural pacemaker to restore an effective rhythm, significantly increasing the chance of survival. C. Cardioversion: Synchronized cardioversion is used for unstable, but still perfusing, ventricular tachycardia or other tachyarrhythmias. In a pulseless client, synchronization is unnecessary and would delay life-saving treatment. D. Amiodarone 300 mg IV bolus. Amiodarone 150 mg bolus if needed: Antiarrhythmic medication like amiodarone can be used as an adjunct after defibrillation and CPR if the rhythm persists. It is not the first-line priority in pulseless ventricular tachycardia because immediate defibrillation is needed to restore circulation.