Your 65 Year Old Male Patient Is Complaining of "Chest

Your 65 year old male patient is complaining of "chest pressure" that radiates to his left elbow and shortness of breath. He is pale and his hands are cool to the touch. A bystander has already called 9-1-1. You should

A) check his blood pressure while he is standing then transport.
B) apply an automated external defibrillator (AED) .
C) ask the patient to "bear down" and take several deep breaths.
D) administer 100% oxygen via non-rebreather mask.