The quiz
You are called to the home of a 81 year old male who is complaining of dizziness and weakness of the past several hours. He appears ill, with pale diaphoretic skin. He attempts to stand when you arrive and experiences a near syncopal episode. You cannot feel a radial pulse, but his carotid is strong and slow at a rate of approximately 30/min. You are having trouble hearing a blood pressure. You place him on the monitor and see the following rhythm.

about 3-5 minutes