How to donate blood correctly

Tips on blood donation 1. Blood is a red liquid that flows continuously through blood vessels and the heart. Under normal circumstances, the total amount of blood in a person's body is about eight percent of his or her body weight. An adult weighing fifty kilograms has about 4,000 milliliters of blood in his body. 2. Blood is made up of formed components and plasma. There are three types of formed components, which are red blood cells, white blood cells and platelets. 3. Scientists have determined that the life span of red blood cells in human blood is about 120 days. 4. By 1995, the world **** found 23 red blood cell blood group system, which has the greatest relationship with blood transfusion is the ABO blood group system. In 1921, the World Health Organization officially named the ABO blood group system as A, B, AB and O. 5. On October 1, 1998, the Blood Donation Law of the People's Republic of China came into force. 6. The Law on Blood Donation specifies the body weight of blood donors, which should be 50 kilograms for male citizens and 45 kilograms for female citizens. 7. Citizens can donate either whole blood or component blood, of which the interval for whole blood donation should be 6 months and the interval for component blood donation (platelet donation) should be 1 month. 8. Citizens who donate blood have to go through strict health checkups, including physical examination and blood test, and only those who have passed the health checkups can donate blood, so it means that they are healthy to donate blood. 9. The earliest discovery of blood type is the Austrian medical doctor Karl Landsteiner. His discovery opened the door to the safety of blood transfusion and gave new life to hundreds of millions of people all over the world. "World Blood Donor Day" is his birthday, June 14 to determine. 10. "World Blood Donor Day" was established in 2004 by the World Health Organization, the International Federation of Red Cross and Red Crescent Societies, the International Federation of Blood Donor Organizations and the International Society of Blood Transfusion***. 11. Blood has four major functions in the human body: (1) transportation function, transporting oxygen, water and various nutrients to the tissue cells in all parts of the body; (2) keeping the body's acidity and alkalinity relatively constant; (3) regulating the body temperature; (4) resisting the invasion of harmful substances on the human body. 12. Plasma makes up about 55% of whole blood. Most of the plasma is water, accounting for more than 90%, the rest is a variety of proteins, organic and inorganic substances. 13. The human body needs to make blood protein, iron, copper, folic acid, vitamin B12 and other substances, protein is the main raw material for the manufacture of blood, and iron is an important component of red blood cells, folic acid, vitamin B12 can promote the development and maturation of blood cells. These raw materials are not lacking in the normal human body and can be supplied as long as a normal diet is maintained. 14. The fetus in the mother's gestation period also has a blood type. 15. Many people believe that blood type is related to personality. For example, people with blood type A are rational, people with blood type B are optimistic and enthusiastic, and people with blood type O are more confident and determined. In fact, the difference in blood type depends only on a certain polysaccharide substance on the surface of red blood cells. Experiments show that, as long as the use of several special enzymes, a very short period of time can be B type blood into A type blood, so that blood type and personality related to no scientific basis. 16. Whole blood refers to all the components of blood, including all the components of blood cells and plasma. 17. Normal human blood can be regenerated. Therefore, some people say that after donating blood, the blood of the body will be reduced forever, which is incorrect. 18. Healthy people do not need to postpone blood donation after receiving hepatitis B vaccine and hepatitis A vaccine immunization; however, those who receive hepatitis B immunoglobulin injection can donate blood only after one year. 19. Blood can be donated four weeks after the last immunization with rabies vaccine; blood can be donated one year after the last immunization with rabies vaccine after being bitten by a rabid dog. 20. Women who have menstruation for three days before or after the menstrual period are not allowed to donate blood for the time being. 21. You can donate blood only after one month after recovering from acute urinary tract infection and three months after recovering from pneumonia. 22．Three months after appendicitis surgery, hernia repair and tonsil surgery, and half a year after larger surgery can donate blood. 23．People who have been transfused whole blood or component blood due to illness within five years are not allowed to donate blood. 24. The national system of free blood donation is to ensure that patients can get healthy and safe blood on the one hand, and to strictly regulate the behavior of blood collecting and supplying units on the other hand, so as to protect the health of blood donors. 25. The relevant equipment in blood stations is strictly sterilized, and all utensils that come into contact with blood are disposable, so it is safe to donate blood without compensation, and no disease is transmitted. 26. The Blood Donation Law stipulates that gratuitous blood donors and their immediate family members who are not entitled to public medical care and labor insurance medical treatment can enjoy full or partial free blood supply when they need blood due to illness. 27. Human beings have mastered the technology of blood transfusion for nearly 100 years. According to scientists, regular blood donation by healthy people is good for health, can enhance the body's hematopoietic function, but also can reduce blood lipids, reduce the incidence of cardiovascular disease and cancer. 28. Not all people who have suffered from hepatitis can't donate blood, if it is clear that they have suffered from hepatitis B or hepatitis C, they can't donate blood. However, if you have suffered from hepatitis A, you can donate blood after one year of clinical cure with three consecutive one-month intervals between tests. 29. Transfusion of component blood can be used for multiple purposes, saving blood source, and can also reduce the transfusion reaction of patients. Modern blood transfusion therapy has generally entered the stage of using component blood transfusion, and whole blood has been basically unnecessary. 30. All unpaid blood donors have the right to be honored and rewarded, but they should not deliberately ask for material rewards. 31．Blood donation in China should be registered with the real identity, and blood donors are not allowed to donate blood under false names. 32．People with rare blood types are scarce in number, so once a patient with a rare blood type needs a blood transfusion, it is easy for him or her to be unable to get enough blood in time because of a shortage of suitable blood supply personnel. The way that most of the places have taken to avoid this situation is to set up a team of volunteer blood donors of rare blood types; 33. The Blood Donation Law stipulates that the implementation of the gratuitous blood donation system in China is to encourage eligible people to actively participate in blood donation. 34．The Blood Donation Law stipulates that China has implemented a gratuitous blood donation system, which also means that citizens donate blood free of charge, and that citizens need to pay for blood collection, testing and storage when they use blood for illness. 35. Transaminase is an important indicator for detecting whether the liver is damaged. When high transaminases are found when donating blood, it is not necessary to suffer from hepatitis. 36．The Blood Donation Law advocates that some people should be examples of gratuitous blood donation, and they are ------- college students, cadres and soldiers. 37．People who have undergone surgery to remove organs such as the stomach, kidney, spleen and lungs and have recovered from such surgery cannot donate blood. 38． 38. Nowadays, many people have myopia, and blood donation has requirements for patients with ophthalmic diseases. Patients with keratitis, iritis and optic neuritis are not allowed to donate blood, and highly myopic patients with changes in the fundus of the eye are also not allowed to donate blood. 39．The state has strict quality standards for the relevant materials used for collecting blood in blood donation, in which the needles and blood bags in contact with the human body or blood are not reusable and can only be used for one time; 40．There are a few people whose blood test fails during the health examination for donating blood and the examination in the hospital reveals that the test is normal. The following correct explanation is for blood safety, blood stations to do blood tests for screening, the emergence of unqualified, is not necessarily the body has a disease. 41. The purpose of World Blood Donor Day is to express gratitude to all blood donors for their selfless gift of life on this special day. 42. The Law on Blood Donation stipulates that the duties of the Red Cross societies at all levels in the work of gratuitous blood donation are that the Red Cross societies at all levels shall participate in and promote the work of blood donation in accordance with the law. 43. Regular blood donation is likely to promote the metabolism of the human body and enhance immunity and resistance to diseases. 44. 44．Taking medicines that inhibit or damage platelet function (such as aspirin-containing or aspirin-like medicines) can not donate blood for the time being when it is less than five days after stopping the medicines; 45．About the blood donation of those who love to drink alcohol, as long as they don't drink for one or two days before the donation of blood and are qualified by the health examination, they are allowed to donate blood. 46．Donating blood will not have any effect on body weight, and if you drink a glass of water after donating blood, the lost weight will soon be replenished. 47．Citizens who have donated machine-recovered (single-recovered) platelets can donate whole blood four weeks after they have donated machine-recovered platelets. 48．The blood volume of a person usually reaches the normal level in a few hours after blood donation. 49. The difference between donating whole blood and donating component blood is that donating component blood is the process of collecting a component of blood (such as platelets) through a blood cell separator and transfusing other blood components into the donor's body at the same time. 50. Normal human body will have part of the blood cells aging and dying every moment, and at the same time there will be corresponding blood cells newborn, so the total amount of human blood is always in a balanced state. 51. People suffering from the following diseases are not allowed to donate blood (1) anemia; (2) leukemia; (3) schistosomiasis (4) tuberculosis (5) AIDS. 52. When filling out the "Blood Donor Health Inquiry Form" before donating blood, citizens should truthfully fill in all the inquiries, including the following habits (1) whether they have ever taken drugs; (2) whether they have a history of homosexuality; (3) whether they have more than one sexual partner; and (4) whether they are in the same sex; and (5) whether they are in the same sex. (2) Having a cold or acute gastroenteritis for less than a week; (3) Having childbirth or breastfeeding for less than a year. Before donating blood, citizens should pay attention to the following problems in order to ensure their health and the quality of blood (1) Eat low-fat food one day before donating blood; (2) Don't drink alcohol, especially strong alcohol; (3) Get enough sleep and don't do too strenuous exercise. 55. After donating blood, many people are worried about damaging their bodies, so the right way to choose is to (1) work normally and pay attention to rest; (2) maintain a normal diet. 56. The following rights of blood donors should be protected: (1) the right of gratuitous blood donors to be honored and rewarded; (2) the right to protection of privacy; (3) the right to enjoy free medical checkups and laboratory tests when donating blood; (4) the right to be free of charge; (5) the right to be free of charge; (6) the right to have a good time; and (7) the right to have a good time. A few healthy people also have reactions to blood donation, mainly dizziness, panic, sweating and other phenomena when donating blood, which are caused by (1) mental tension (2) lack of sleep or excessive fatigue before donating blood; (3) lack of breakfast; and (4) the fact that they have not eaten breakfast. The correct understanding of this article is that (1) citizens must be 18 years old to participate in blood donation; (2) people over 55 years old can also donate blood, but they must meet the health conditions for blood donation. 59. The correct statements about blood donation and anemia are: (1) Blood donation is only a small part of the human body's blood, and the human body will make enough new blood after blood donation and will not become anemic; (2) Some people are reluctant to donate blood because they are worried that they are anemic. In fact, anemic patients can soon be checked before donating blood, and if they are checked for anemia, blood stations will not allow them to donate blood. (1) Citizens can donate whole blood as well as component blood at blood stations; (2) Citizens in China mainly donate platelets as component blood; (3) Citizens can donate up to 400 ml of whole blood at a time; (4) The correct statement about guaranteeing the safety of blood is that (1) Because the purpose of unpaid blood donation is to cure the sick and save lives and not for reward, the safety of blood is guaranteed to the greatest extent; (2) Voluntary blood donation is not a form of blood donation but a form of blood donation; (3) Voluntary blood donation is not a form of blood donation. (2) Voluntary unpaid blood donation does not affect the health of the body.