How do blood banks work? Detailed answer

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How do blood banks work? Detailed answer

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How do blood banks work?

Many hospitals have blood banks. They contain all types of blood. When blood is required for a transfusion, it is taken from there. As these reserves are depleted, healthy people donate blood to replenish them. Blood can be stored refrigerated for up to three weeks. To prevent its coagulation, a chemical is added - sodium citrate. Usually, blood transfusion is done to make up for severe blood loss. They can occur during surgery, during accidents and as a result of certain diseases.

Sometimes only its constituent parts are used for blood transfusion. Often only the liquid part of the blood, plasma, is needed. It is usually poured if a person is badly burned. As a result of severe burns, a large amount of blood plasma is lost. In some cases of anemia, only red blood cells are transfused. With this disease, it is precisely them that are missing in a person’s blood, or these little bodies contain too little hemoglobin.

In a blood transfusion, a person receives blood of the same type as their own. Otherwise, a bad reaction is possible. Just in case, blood prepared for transfusion is checked for compatibility with the blood of the person who is to receive it. Transfusion of previously harvested blood was first carried out by the American physician Oswald Robertson. He used it to treat wounded soldiers in 1918, during the First World War.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

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Of the inhabitants of the land - the cheetah. For some time he can run at a speed of about 120 km/h. A greyhound dog can reach speeds of up to 110 km / h, an antelope - up to 90. Even a heavy elephant can run at a speed of 40 km / h.

The largest predatory land mammal on the planet is the Alaskan bear. The mass of some males is more than 750 kg, and the length is 2,5 m (according to unconfirmed reports, 3 m).

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