I have a much, much lower threshold for this procedure, to be honest. I bolded the above because the more research I see, and the more I hear really really smart docs talk about it (and then plagariaze their ideas as my own) the more I am simply not believeing the "2 guys go down from a blood transfusion" myth. I just don't see it to be fact.Our medics had a pretty intense conversation on my last deployment about the feasibility of buddy transfusions. I was in the TOC "checking emails" (youtube) while this was going down. The criteria they pretty much settled on was deliberate security in place, this guy is expectant without the procedure and we are at troop strength (it wouldn't do much good to have 5 guys out, one guy giving blood to another leaving us at just above 50% strength).
200 lb dude in great shape (obviously no other confounding factors) giving up 450cc of blood isnt taking him out of the fight.