Originally Posted by Chuck289
I was wondering how quickly can they determine your blood type. You know, if your knocked out and you don't have it written on a dog tag or something. I want to get a RoadID braclet or somethign similar and want know if blood type is someting worth putting on there.
I have mine on my RoadID.
In hospital it can be 30+ minutes to type blood, but in dire emergencies it wouldn't matter...they can start dropping O neg blood immediately or plasma.