The nurse is caring for a client on a cardiac monitor who is alone in a room at the end of the hall. The client has a short burst of ventricular tachycardia (VT), followed by ventricular fibrillation...

The nurse is caring for a client on a cardiac monitor who is alone in a room at the end of the hall. The client has a short burst of ventricular tachycardia (VT), followed by ventricular fibrillation (VF). The client suddenly loses consciousness. Which intervention should the nurse do first?

1. Go to the nurse’s station quickly and call a code. 2. Run to get a defibrillator from an adjacent nursing unit. 3. Call for help and initiate cardiopulmonary resuscitation (CPR). 4. Start oxygen by cannula at 10 L/minute and lower the head of the bed.