Being this is the BLS forum I will direct this question mostly towards what is common in my area. The page is for an elderly male, Complaining of chest Pain. This Pt. is close to your position and instead of responding to the Rig, you go directly to the Pt. residence. You announce on your portable that you are on scene. You arrive at you Pt. and he is sitting upright gasping for air, You ask about the pain and pt. is so anxious he is barley able to talk. Pulse is 110, Resp. 32 using accessory mussels. You can hear the rales(congestion) in his voice. Your crew is still 2-3 min. out and you have gloves and a pocket mask. Where do you start?