What are the benefits of blood donation? Summary of precautions before and after blood donation
4hw.com.cn: blood donation is a social public welfare activity. Blood donation can not only provide fresh blood to the blood bank and supply patients in urgent need of blood in the hospital, but also help to improve the ability of blood regeneration and improve the resistance to diseases. Let's look at the benefits of blood donation and the summary of precautions before and after blood donation.
1. Get a basic health check
Before blood donation, it is generally recommended to go to the hospital for a physical examination to rule out whether there are blood diseases. Even if you don't have a special examination, the doctor will also do a basic health examination for the blood donor before blood donation, including blood pressure, heart rate, body temperature, pulse, etc. After the collection of blood samples, laboratory personnel will also carry out the detection of 13 infectious diseases, including AIDS, including blood samples. When your blood sample is successfully stored in the warehouse, it shows that you are in good health and are not infected with these infectious diseases.
2. Life preserver at critical moment
If the blood donation is less than 800 ml, you can use free blood according to three times the amount of blood donation within five years. After five years, you can use free blood according to the same amount of blood donation. Note that it is free! If you donate more than 800 ml of blood, you can use blood free of charge for life. Your spouse and immediate family members can also wait for blood donation for free, so that at the critical moment, the family will have life security, which is equivalent to free insurance for their lives.
3. Enhance hematopoietic capacity
After blood donation, due to the reduction of the number of blood cells, stimulate the bone marrow to accelerate hematopoiesis, and the whole body blood reaches the level before blood donation within a few days. Due to frequent stimulation of bone marrow, the stress function of bone marrow is greatly improved, which can prolong the rescue time in case of emergencies.
4. Blood donation can prevent and reduce cardiovascular and cerebrovascular diseases
Long term blood thickening will lead to decreased vascular elasticity, susceptibility to arteriosclerosis, hypertension, and eventually cardiovascular and cerebrovascular diseases. After normal blood donation, through drinking water, the blood volume will soon be supplemented, so that the blood can be naturally diluted, the viscosity decreases, and the hidden danger of arteriosclerosis is reduced. In addition, after the blood viscosity decreases, the blood flow rate accelerates and the cerebral blood flow increases, making people feel relaxed, clear headed and energetic. It can reduce blood lipid and blood viscosity, prevent and alleviate hyperviscosity.
Precautions before and after blood donation:
The day before blood donation, go to bed early to maintain a normal sleep state. At the same time, eat light and balanced in the morning to fill yourself with positive energy.
Before and after blood donation, you should not drink, smoke or inject, and some bad living habits should be corrected.
After blood donation, you'd better eat some food that can replenish blood, such as red dates, milk, purple potatoes, walnuts, etc. to help your hematopoietic system recover as soon as possible and prevent and avoid anemia, dizziness, tinnitus and other problems.
After blood donation, you can't participate in strenuous exercise, which will cause muscle transverse lines to dissolve and endanger life safety. It's best to take a walk or take a nap to supplement your physical strength.