Blood donation is a vital necessity ,

The important mission of donors

Each donor take about 10% of blood in a single collection process.On the territory of the Russian Federation more often you can meet people with the second group.The most rare is considered the fourth group with a negative Rh factor.

The blood need people with complex trauma, burns.This can be attributed to patients who undergo surgery, assuming significant blood loss.

donor material is needed and people who are diagnosed with severe diseases of the hematopoietic system.For example, leukemia.Chemotherapy and radiation therapy are used to treat cancer, blood counts falling.So after these procedures requiring transfusion.There are genetic diseases in which human life is necessary to make a blood transfusion.For example, in thalassemia.

preparations which are obtained from blood donors was used for the treatment of hemophilia.Sometimes transfusion need postpartum women and newborns.

lack of blood can be dangerous to the lives of people who need urgent transfusion.

blood substitutes

Complete blood substitutes anybody yet did not manage to invent, there are only drugs that can perform some of its vital functions.For example, perftoran agent can perform the task of red blood cells - carry oxygen.Before using the product, be sure to do a biological sample.

Abroad has also been designed as an oxygen carrier such Hemopure.It is based on bovine hemoglobin.Recently, the drug registered in Russia.Widely it is not used as Hemopure has serious side effects.

All created today blood substitutes can perform only the function of red blood cells.But it has not been able to replace platelets and white blood cells.

When a large loss of blood in medicine use solutions that make up the volume of the circulating fluid.For example, Ringer's solution.Such formulations allow to avoid the shock, which causes loss of its sharp, but they do not perform the basic functions of the blood cells.

Contraindications

donors in each country, there are certain requirements that apply to the person who give blood.It is interesting that in Russia these requirements are more stringent than in other states.

Not all donor countries may be only those persons who have attained the age of majority.In contrast to the Russian Federation, the UK donor can be a teenager 16 years of age, having a parent's permission.

In Russia, women are forbidden to donate blood during menstruation.Such a ban does not exist in Austria and Spain.

If you live in Russia and enjoy traveling, this could be a reason to refuse your donation.To be more precise, after more than 3 months in the "malaria" countries allow a person to become a donor only three years.

In the United States prohibit people to donate blood for 12 months after his arrival from Iraq.

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