What happens if a person loses too much blood, and how to save a person who has lost too much blood

Excessive blood loss can cause shock and even death.

Blood flows endlessly in the human body, it runs through all corners of the human body, runs through the whole life of people, and it is the foundation of individual life.

Blood is one of the most important components in the human body, accounting for about 8% of an adult's body weight, which is equivalent to 70-80 milliliters of blood per kilogram of body weight, which means that an adult weighing 60 kilograms has about 4500 milliliters of blood in the body.

The main functions of blood include:

1.Transporting oxygen and carbon dioxide: The hemoglobin in red blood cells binds to oxygen and transports oxygen from the lungs to all parts of the body, where it carries carbon dioxide back to the lungs.

2.Transports nutrients absorbed through the capillaries in the intestine to all parts of the body;

3.transport of metabolites (mainly nitrogenous substances) to the kidneys, ** and intestines, excreted from the body;

4.Maintain the body's fluid balance;

5.transport substances (e.g., hormones) from where they are produced to where they act;

6.regulates body temperature by distributing body heat;

7.Maintain the normal acid-base balance of the body;

8.defense against invasion of microorganisms and foreign proteins through the activity of white blood cells and various soluble proteins such as antibodies and complement;

9.Stabilizes injuries and promotes healing by providing coagulant substances.

Excessive blood loss can lead to organ ischemia and subsequent failure, which will eventually lead to death.

Anemia, weakness, mental disorders.

If the injured person is bleeding from trauma, the bleeding should be stopped in time, otherwise it is easy to cause shock due to excessive blood loss. In particular, the wound has a spurting hemorrhage, mostly hurting the arteries and blood vessels, and it is necessary to press the wound with a clean cloth to stop the bleeding, and the bleeding must be pressed at the bleeding opening, and then the remedy of hemostasis is adopted.

If there is no ejection of bleeding, the rescuer should use a clean cloth or towel for a preliminary bandage (if the cloth strip cannot be found nearby, tear off the clothes and do a bandage, so as to avoid excessive bleeding and coma or shock, etc.). However, if abdominal viscera prolapse occurs, the exposed organs can be covered with a rotten damp cloth, covered with utensils, and wait for rescue.

In the case of bleeding in the above situations, you should follow the actual situation and remedial measures, and then call 120 and other rescue agencies in time, and then wait for the rescue agencies to arrive in time.

The first one is hemostasis, bleeding.

Second: blood transfusions are needed if necessary.

Third: Dangerous complications or comorbidities from excessive blood loss.

Excessive blood loss can cause hemorrhagic shock, and anti-shock** should be used at this time, along with blood transfusion.