How much blood does a person have to lose in order to cause them to get dizzy and pass out?
The person who will be losing the blood is a white, caucasion male; 16 years of age and weighs at about 150-160. He's only 5 feet 6 inches tall. He'll end up hacking, with a small knife, at his arms and wrists. I guess a better question would be, how long would it take him to lose enough blood to fall into unconsciousness?
Thank you in advance for any answers or help!