Almost all will die without medical care. Class III Hemorrhage involves loss of 30-40% of circulating blood volume. The patient's blood pressure drops, the hea

Almost all will die without medical care. Class III Hemorrhage involves loss of 30-40% of circulating blood volume. The patient's blood pressure drops, the heart rate increases, peripheral hypoperfusion (shock), such as capillary refill worsens, and the mental status worsens. Fluid resuscitation with crystalloid and blood transfusion are usually necessary.