You need to a hunting companion with a deep, open chest wound. what should you do first?

Cover the wound with the palm of your hand until a bandage is located. This helps to stop the bleeding if the pressure you apply is higher than the blood pressure inside the blood vessel. Applying pressure will stop the blood flow by putting pressure on a wound, you slow the bleeding and that enables the blood to clot faster. A blood clot is the only way a person will stop bleeding completely.