The Nurse Is Sitting at the Desk Watching the Telemetry

The nurse is sitting at the desk watching the telemetry monitors and notes a patient's rhythm suddenly shows asystole. Which action should the nurse take first?

A) Start cardiopulmonary resuscitation (CPR) .
B) Document the rhythm as normal.
C) Prepare to administer adenosine (Adenocard) .
D) Prepare the patient for cardioversion.