Every year, June 14th is World Blood Donor Day. The slogan of this year’s event is: “Donate blood, let the world continue to beat”, aiming to celebrate the dedication of unpaid blood donors to save the lives of others and improve the health of others through blood donation, and appeal to more people. , Especially young people regularly participate in unpaid blood donations, contributing to the improvement of global health. To this end, the blood station in the center of Zigong carried out blood donation activities, taking this as an opportunity to encourage citizens to donate blood and dedicate their love.
Blood donation refers to the process in which blood donors donate whole blood, plasma or blood cell components. Under normal circumstances, blood donors do not receive any remuneration, and blood collection and supply organizations donate souvenirs to blood donors. The blood is usually stored in blood banks and kept by medical units and blood stations for use in the event of a blood transfusion. Intended blood donors can complete unpaid blood donation at fixed and mobile blood donation stations, blood donation rooms, and blood donation carts in various regions.
In life, most of the blood donation reactions, such as dizziness and nausea, originate from the ignorance of blood donation knowledge, which leads to excessive stress when donating blood. Having a good understanding of blood knowledge and being well-informed can reduce blood donation reactions caused by stress. Generally speaking, donating blood in an appropriate amount does not have much effect on health.
From the perspective of blood volume: the total blood volume of each adult is about 4000-5000 ml, and the blood donation is 200-400 ml, which is about 5%-10% of the total blood volume. Scientifically determined, healthy people lose less than 10% of blood at a time. Cause symptoms. The practice of countless blood donors has proved that healthy people donating appropriate amounts of blood will not affect their health.
From the perspective of blood circulation: about 20% of the human body’s blood is in the liver, spleen and other organs. In case of blood loss, these stored blood will quickly replenish blood volume and return to normal in a short time. Will not affect normal blood circulation and blood pressure.
From the perspective of metabolism: like any living thing, human blood is constantly metabolized. Generally, red blood cells are renewed every 4 months, and blood donation will stimulate hematopoietic function and promote metabolism. Increase new red blood cells, which is beneficial to health.
5 conditions for blood donation
1. Age: 18 to 55 years old;
2. Weight: male ≥50 kg, female ≥45 kg;
3. Normal body temperature, blood pressure, pulse, hemoglobin, hepatitis B surface antigen, and liver transaminase preliminary screening results are normal;
4. Female avoid Menstrual period and 3 days before and after;
5. No cold, fever, medication, etc. one week before blood donation.
6 steps to donate blood
When blood donors donate blood, they will generally go through the following steps-
filling in the form and registration: blood donors need to bring their own ID card, passport and other valid identification documents for blood donation registration.
Physical examination: In order to ensure the quality of blood, check whether there are blood-borne diseases or genetic diseases, as well as determine the blood type of the blood donor, and for the health of the blood donor, a physical examination must be performed. Medical staff will measure blood pressure, pulse, body temperature, blood type, hemoglobin, liver function and certain antibody tests for blood donors.
Iodine tincture disinfection: If the arm is not clean, it is easy to cause infection and blood contamination of the puncture site of the arm. Therefore, it is necessary to disinfect the arm of the blood donor with iodophor. After disinfection, it is forbidden to touch the disinfected part.
Identity verification before blood collection: The identity of blood donors and whether they meet blood donation conditions are verified through the blood management information system.
Blood collection: During puncture, blood donors should clenched their fists. After the puncture needle enters the vein, loosen the fist until the end of the blood donation. According to one’s own situation, 200-400ml of blood can be donated.
Hemostasis: After blood collection, the hemostatic cotton ball must be pressed for at least 10 minutes, and the hemostatic cotton ball must not be twisted to prevent subcutaneous bleeding and congestion. Do not bend your elbows when pressing, because bending your elbows will add resistance to the blood flowing back to the heart from the vein network of your arm.
4 attention after blood donation
Pay attention to the following matters after blood donation:
1. After blood donation, you should rest for at least 10-15 minutes before leaving. Do not do vigorous exercise within 24 hours, and don’t lift heavy objects on your blood donation arm.
2. Protect the eye of the needle. After blood donation, cover the puncture hole with a sterile cotton ball and fix it with tape. Do not remove the dressing on the puncture hole for at least 4 hours. Pay attention to the cleanliness of the eye of the needle, and do not get water on the eye of the needle within 1 to 2 days.
3. Avoid drinking alcohol, do not drink strong tea, and ensure adequate sleep (at least 8 hours or more).
4. There is no need to make a lot of supplements, and nutrition can be appropriately increased. It is recommended to eat some fresh fruits and vegetables, soy products, dairy products, lean meat, fish and shrimp, etc.