As a former EMT I must disagree with the use of "pressure points" .I tried to use the upper arm point. Twice. Didn't work. Talked to 2 paramedics who had more street experience than I did. (One of them had 7 yrs. on the job) Their experience was the same as mine. In both cases paras showed up and stopped bleeding w/hemostats, fortunately, as basic EMT at the time we were not authorized tourniquets. This was back in 1980's.