Well put Pete. The only thing that I could add is to calmly talk with the patient, and get the Pros there. People die of shock. It is not something that should be taken lightly. There are a lot of DON'Ts. Don't give them water or anything by mouth unless they are in hypoglycemic / insulin shock and they are able to speak and swallow. Do not move the person unless they are in immediate danger and do not forget that there is something that caused the shock and to treat that as well. Hypovelemic shock (loss of blood) will not reverse itself if the person continues to bleed. You get the idea. I recommend a basic first aid or a first responder course. Both are short in length and are full of information that can be used more often then you realize. Above all else common sence rules when making descisions in a medical emergency.