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The rate at which the components of the blood are restored is not the same.
Generally, donate 400ml of blood, and the water and inorganic salts in the blood can be replenished in a few to 10 hours. It takes a week or so for the protein in the blood to be replenished. It takes a long time to replenish blood cells, and it takes about 3 months or so.
7-8% of the body's body weight is safe, and it is safe to donate less than 10% (currently 400ml at a time). In addition, the blood donation law stipulates that the next blood donation must be separated by 6 months, which can fully protect the health of blood donors.
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Blood donation is divided into whole blood donation and component blood donation, and the two methods vary greatly in time. In terms of blood collection time, different people are different, donating whole blood is generally enough for 10 minutes, donating blood components generally takes about 1 small leakage time (some blood donors end in forty or fifty minutes, and some take one and a half hours), and the time for testing and queuing is uncontrollable.
Blood donation process: 1. Fill in the form - Before donating blood, the blood donor must fill in a "Blood Donor Health Consultation Form" for the blood station to enter the information management system and verify, and all information will be kept absolutely confidential;
2. Health service Solukang consultation - each blood donor must accept health consultation before blood donation and truthfully reflect his or her health status;
3. Physical examination - blood pressure, pulse measurement, weight weighing;
4. Blood testing - blood type, whole blood specific gravity, hepatitis B surface antigen, alanine aminotransferase, etc.;
5. Blood collection - blood collection will be carried out after passing the physical examination and preliminary screening test;
6. Rest - After donating blood, you must compress the eye of the needle for about 5-10 minutes, and rest at the blood collection site for at least 15 minutes;
7. Collect the blood donation certificate and souvenirs before leaving.
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7-10 days. After donating blood, it can be completely restored to normal in 7 to 10 days, and after blood donation, the blood stored in the liver, spleen and other organs will quickly lead into the blood circulation system, and the circulating blood volume will be balanced, in addition, the fluid around the blood will also immediately enter the blood vessels, and it only takes 1 to 2 hours to replenish the lost blood volume. After donation, the metabolism of the bone marrow will also be accelerated, the hematopoietic function will be more vigorous, and the red blood cells and hemoglobin can return to the level before blood donation in 7 to 10 days.
Precautions for blood donation.
In the first two days after donating the blood, you should rest more and get at least eight hours of sleep every day. At the same time, in order to make the body better adapted, do not do strenuous exercise, as well as overworked physical and mental work.
A few days after donating blood, you should also read less electronic products and books to avoid affecting your sleep quality due to mental injury; Drink plenty of water, replenish lost body fluids in time, or drink some brown sugar water to replenish blood.
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I believe that many people may have donated blood in peace, relatively speaking, blood donation is also a voluntary behavior, but also very encouraged, because it is also a public welfare behavior, and if you have related diseases in the future, it is also of certain help, of course, for blood donation, in fact, there are certain requirements, so how long after donating blood can you donate blood again?
How Long After Donating Blood To Be Able To Donate Blood Again
In fact, for the interval of blood donation, in principle, there are regulations, which is also for the health of the individual, to ensure that between two blood donations, generally more than six months apart, so a person can not donate blood more than twice in a year, if frequent blood donation is likely to lead to the loss of nutrients in their body, that will lead to a certain abnormality in the immune system, which will lead to a decrease in personal body resistance, and it will be easy to appear related diseases. And there are certain requirements for the amount of blood donated each time, generally two milliliters, and the maximum cannot exceed 400 milliliters. At the same time, before donating blood, it is generally not possible to drink too much water, and at the same time, there are certain requirements for the diet, try to eat less greasy food, because drinking too much water will cause the nutrients in the blood to be diluted, so the quality of the blood will also decrease.
At the same time, after donating blood, we must pay attention to nutritional supplements, it is very likely that dizziness and other situations are relatively normal, we must pay attention to control it in normal times, and we must also take into account our own physical condition when donating blood, if the body is really not acceptable, try not to donate blood. Although the general interval between blood donations is about six months, because this time is enough for the body to get a good recovery, including the blood cells and plasma, etc., it takes a certain amount of time to recover, and this is also a good effect on our body's nutritional supplements. In ordinary life, if your physical constitution meets the requirements, you can also donate blood, which is relatively positive.
In short, when donating blood, there are certain requirements for the amount of blood donated, and there should be at least half a year between two blood donations, otherwise it will affect the normal health of our body.
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