A person in the spheres of his life and work quite often faces dangers. This was especially noticeable in the technogenic era. It would seem that the development of progress was supposed to reduce the danger to people in every sense. In practice, the picture is different - the more progress, the higher the risk of injury. Perhaps this is due to the adaptation of all mankind. After all, our ancient ancestors were able to live normally in the jungle and in other environments. Technogenic time relative to the time of the existence of mankind is still small. Be that as it may, quite often blood coagulation often saves us from possible troubles.
What is this process - "blood coagulation"? In fact, in short, it is the process of the formation of a blood clot in a wound. No matter how frightening the word thrombus sounds, it is he who saves us constantly from the loss of blood or its infection. A blood clot in itself is a destroyed and clumped platelet. These cells are contained in human blood in the form of flat red plates of various shapes. The chemical reaction proceeds as follows. When blood leaks out, the fibrogen protein breaks down and creates a filamentous network - fibrin. Further, the bulk of the blood - platelets - appear on the surface and collapse under the influence of air pressure (the difference in atmospheric and intravenous pressures). The destroyed mass sticks together and sticks to the network. This is the appearance of a blood clot - a kind of cork in a wound.
For the normal functioning of the body, a certain amount of blood is required (individually). It is from these natural considerations that the coagulation time is within 5 minutes. Currently, there are many methods that allow you to determine the clotting time. If you take on average and according to commonly used methods, then this is 5 minutes for men and women. Since blood is under greater pressure in the body than environmental pressure, any scratch could simply kill you. But how then can platelets withstand blood pressure? It's all about the specifics of the habitat. This specific substance can exist only in plasma, which is under pressure. If the plasma is removed, then it is destroyed.
The norm in children deserves special attention. If for adults an average of 5 minutes is blood coagulation, the norm in children is slightly higher. In practice, this indicator lies within 8 ... 10 minutes, and sometimes more. This is due to the fact that the composition of the blood, like the whole body, is still different in some indicators in children. In particular, the fibrinogen protein is not always released on time from the vessels, and the platelet count may be less (difficulties in the formation of a blood clot - little material) or large (slow process). In any case, the child’s body needs to be given more time to clot blood. This is one of the problems of mothers - the need for constant supervision, since a long time of non-folding contributes to the possibility of infection.
However, the blood coagulation process is not always debugged for everyone. It is not known what led to such a pathology, but there is a disease - hemophilia. This disease is inherited and cannot be acquired in any way. In this case, blood coagulation does not occur due to the absence of one of the components of the coagulation chemical reaction. Perhaps a violation of the reaction itself, but, again, due to the absence of one of the components. For such people, a scratch is a huge problem, and a fight is really a fight for survival. But still there are some ways to partially solve this problem.
For this, special preparations are used, the main task of which is to exert a hemostatic effect or improve blood coagulation. By the way, there are drugs that, on the contrary, slow down this process. Anticoagulants or antiplatelet agents prevent the formation of a fibrin filamentous network. This helps doctors a lot during long and difficult operations, when it is important that the blood oozes from the wound and the wound does not heal.