Is it harmful to donate blood?
Thanks to the phenomenon of donation, thousands of lives are saved in the world every day. However, there are many stereotypes regarding him that make blood transfusion stations fearful. The benefits and harms of donating blood will be discussed in our article.
What is the blood donation procedure?
The first scientific research concerning transfusion dates back to 1848. It was then that an assumption was made about a new method of treatment - the replacement of diseased blood with healthy one. However, experiments designed to prove the theory in practice proved unsuccessful. At that time, scientists did not yet know about the existence of blood groups and their compatibility.
Therefore, donation received its development only at the beginning of the twentieth century, when science advanced significantly in the study of the composition of the blood, as well as how it was stored for a long time. At first, relatives and friends of the patient were invited as donors, then they began to offer donations to everyone who does not have contraindications to this.
The procedure itself is reminiscent of a fence from a vein for analysis.With the only difference that the blood is not absorbed into the syringe, but into a special plastic bag. According to research, a person without harm to his health can lose 12% of his blood “stock” at once, that is, about 500 ml. Approximately as many physicians take away from the donor at a time. 450 ml is sent to the storage, and 50 ml - for research. After all, doctors must make sure that the donor does not have any infections.There are many heroic stories associated with blood donation. For example, during the blockade of Leningrad, the Leningrad Institute of Blood Transfusion did not stop its work for a single day. The only concession to the military time was the transition to the procurement of exclusively the first group of blood - it can be transfused to all groups, which greatly simplifies the transfusion in front-line conditions (it should not be confused).
This video will clearly demonstrate the blood donation procedure:
Who can be a donor
Not everyone has the opportunitybecome a donor. To donate blood, a person must be from 18 to 60 years old, his weight should not be less than 50 kg, and height - less than 150 cm. In addition, he should not have contraindications to donation, which are divided into:
- absolute - in such cases a person will never be allowed to donate blood;
- temporary - when a person for some time loses the opportunity to donate blood.
Listabsolute contraindicationslong enough, we mention only the most common:
- all types of hepatitis. For example, if in childhood you have had a disease of Botkin, which doctors often call hepatitis A, you will get a refusal, because through the blood you can infect another person with this virus;
- syphilis. Blood is one of the ways to transmit it;
- tuberculosis in any form;
- oncological diseases;
- diseases of the circulatory system.
Ischemia will also become an insurmountable obstacle to donation (we wrote about it in the article “Are you prone to coronary heart disease?”), Atherosclerosis, bronchial asthma, urolithiasis, complete blindness and deafness, psoriasis, etc.
Temporary contraindications are:
Now consider what can bebenefit and harm of donation.
Benefit and harm of donation
It is very easy to suspect a hidden trick in the case of donation, because domestic medicine is experiencing a shortage of donor material and is very actively promoting donation, demonstrating its advantages and not saying anything about minuses.We tried to find out how regular half-liter blood loss affects human health and what the benefits and harms of blood donation are.
- regularly deprived of part of their blood supply, the body learns to fill them faster, so the blood is renewed and the body rejuvenates. Ever wonder why women live longer than men? Scientists believe: the cause of this is menstruation - monthly bleeding, which stimulates blood formation, and with it the regeneration of the body;
- reduced risk of stroke;
- in patients with hemochromatosis, the level of iron decreases. Note: for a healthy person with a normal concentration of ferrum, blood loss can be harmful if you do not use iron-containing foods after that;
- lowers cholesterol.True, you need to donate not blood, but its component - plasma. In expensive clinics, plasmapheresis will have to pay a lot of money, and at blood transfusion centers it will be done for free;
- allows free examination. To eliminate the possibility of infection through the blood, it is examined for the presence of viruses, and the results are reported to its "owner".
- reduced iron levels and possible anemia, if you do not enrich the diet with foods rich in this chemical element;
- pressure reduction. For hypertensive patients this will be beneficial, but for hypotensive women - to the detriment.
Perhaps this is all that we were able to find on the topic "The benefits and harms of blood donation." It remains to add: there is no reason to think that it is possible to get infected while taking any infection. Today, blood is taken using a disposable system, which is printed in front of the donor. So there is nothing to fear.