Use proper clothing to conserve body heat. Increase body heat through an increase of physical activity. Know your limits and do not push yourself to the point of exhaustion. Make a shelter and light a fire while there is time and energy for doing a proper job. A sudden loss of a relatively small ammount of blood can be more dangerous than a gradual loss of a large ammount.
Pulse is fast and weak, breathing becomes rapid and shallow.
Pupils may dilate, patient may become unconscious. Fear may add an element of psychological shock which can worsen physical shock. Pain, tiredness, discomfort may aggravate shock. Place patient lying down comfortably on back. If uncertain as to the nature of the injuries, keep patient flat on the back.