To keep a victim of severe internal bleeding from going into shock, keep him calm until EMS arrives.
Don't make them speak, but speak to them. If they speak, the movement of their lungs could make the bleeding worse. So could any movement. And if they were upright, the bleeding could cause even more damage.
Dichotomous Key is an important tool in determining the identity of an organism and other objects in nature. Hopefully I helped :) Give me 5 stars and brainiest!!