What kind of people can t donate blood? What do I need to prepare before donating blood?

In clinical practice, the requirements for blood donation are as follows:

1.Blood pressure requirements require blood donors to have normal blood pressure, diastolic blood pressure greater than 95mmHg or systolic blood pressure greater than 145mmHg cannot donate blood, and blood pressure can only be donated if the blood pressure is within the normal range.

2.The age requirement is that the blood donor is between 18 and 55 years old, and minors under the age of 18 and the elderly over 55 years old are generally not allowed to donate blood.

3.People with medical conditions, such as febrile or anemia, thrombocytopenia, or neoplastic diseases, cannot donate blood. People who are hepatitis B surface antigen carriers, hepatitis C virus positive, syphilis virus positive, and HIV antibody positive are also required not to donate blood because these virus carriers can transmit the virus to healthy people.

4.Do not take drugs that affect platelets or anti-allergic drugs one week before donating blood.

5.Women are not allowed to donate blood during menstruation.

Therefore, before donating blood, you must do a comprehensive physical examination and do not blindly follow the herd.

It is that some very old people are not able to donate blood, and they need to eat enough before donating blood, drink a little less water, and roll up their sleeves.

I think people with anemia are not able to donate blood, so you need to be careful not to drink water or eat before donating blood, and you must pay attention to rest.

What kind of people can't donate blood? What do I need to prepare before donating blood?

1. What's the situation? People can't donate blood for a while? Tooth extraction or other minor surgery within half a month.

Three days before and after menstruation, less than six months after pregnancy and miscarriage, and less than one year after childbirth and breastfeeding. Cold, acute gastroenteritis** less than one week, acute urinary tract infection** less than one month, pneumonia** less than three months. Some infectious diseases, such as typhoid, brucellosis, and malaria, take less than one year, two years, and three years, respectively.

Donating blood for free is a very honorable thing. When we often walk down the street, we can see some vehicles donating blood for free. Donating blood will not only help them, but it will also allow your body to get some health regulation.

Most importantly, it's also a reflection of your personality.

2. Healthy people donate blood according to regulations, and there will be no impact on the body. After donating blood, the body's hematopoietic tissue will automatically accelerate hematopoiesis, and it will generally return to its original level after half a month. Proper nutrition after donating blood is necessary, but there is no need to overeat.

If a large amount of supplementation is inactive, it will not be conducive to the digestion and absorption of nutrients, leading to gastrointestinal dysfunction and obesity due to caloric overload. Too much iron in the human blood can significantly increase the risk of heart disease, and proper blood donation can greatly reduce the amount of iron in the blood. It will not hurt to donate blood in moderation, protect the puncture hole after donating blood, and properly supplement nutrition.

3. After donating blood, donors need to supplement certain nutrients. It is recommended to eat more lean meat or eggs and fish, which can supplement the protein needed by the human body. Protein can play a role in hematopoiesis and speed up the body's recovery.

Blood donors also need to replenish some water in time to ensure the smooth flow of blood. If possible, you can drink more electrolyte-rich drinks, such as glucose or vitamin drinks, which will be more effective. After donating blood, blood donors can eat more iron-supplemented foods, such as pig blood, duck blood, etc.

The iron content in pig blood and duck blood is extremely rich, and these irons are heme iron, and the absorption rate is higher than that of ordinary iron, reaching more than 22%, which can accelerate blood recovery.

World Health Organization.

However, not everyone is suitable for blood donation, and some conditions must be met, such as the blood donor needs to be an adult, blood pressure must be stable, and be in good health.

1. What are the conditions that people who are suitable for blood donation?

1. Adulthood. There is a set age for people who are suitable to donate blood, and generally those who donate blood are required to be between the ages of 18 and 55. And also to ensure that the weight of men reaches 50 kilograms, women's weight reaches more than 45 kilograms, if the weight is too light, usually the staff can not bear to draw blood.

2. Blood pressure should be stable. If the blood pressure is higher than 140 mmHg, or lower than 90 mmHg, it is not suitable to donate blood, and it is better to stabilize your blood pressure before donating blood.

3. Be in good health. The person who donates blood must be in good health, for example, no jaundice.

There is no wound infection, and there is no large-scale ** disease.

There are no serious diseases with the facial features, no enlarged thyroid gland, and no serious disability in the other limbs. <>

2. What are the benefits of donating blood?

In fact, a moderate amount of blood donation has certain benefits for the body, for example, it can improve the body's immunity and delay aging, because the right amount of blood loss can promote the regeneration of the body's cells, and can enhance the body's hematopoietic function.

and has the effect of delaying aging. In addition, proper blood donation can reduce the risk of disease, because a group of studies has shown that regular blood donors between the ages of 45 and 50 can reduce blood viscosity, promote blood circulation, and repeated blood donations can prevent arteriosclerosis.

and cardiovascular disease.

It has a good meaning, and blood donation can also play a role in preventing cancer by removing excess iron from the body. <>

Healthy people aged 18 to 55 years. Male blood donors should weigh more than or equal to 50 kg and female donors should weigh more than or equal to 45 kg. In general, people with a systolic blood pressure of 12 kPa and a diastolic blood pressure of 8 to 12 kPa are suitable for blood donation.

The conditions suitable for blood donors are very good, no myopia, usually like to drink water, and it is also a relatively common blood type, no more than 55 years old.

Blood donors need to ensure that their blood pressure remains normal, that their age is about 18 to 55 years old, that they are in good health, that their state is normal, that their weight is greater than 45 to 50kg, and that their body does not suffer from various diseases.

First of all, the body must be healthy. The body must have sufficient immunity. The weight must meet the standard. There must be no contagious disease. And do not smoke or drink.

Resistance must be strong, immunity must be strong, physical fitness must also be good, there can be no cardiovascular disease, nor can there be any hypotension disease.

Before donating blood, make sure to eat a healthy diet and get enough rest, take a short break when donating blood, and protect the needle after snow to prevent infection. People under the age of 18 and over the age of 55 cannot donate blood.

People must pay attention to preparing in advance when donating blood, and should eat more vegetables and less greasy food a week before donating blood, so as to ensure the quality of blood in the body, and also eat more high-protein foods, so as to replenish energy and not have uncomfortable symptoms such as dizziness and sweating when donating blood. It is also necessary to pay attention to rest and get enough sleep a few days before donating blood, which is also an effective way to ensure blood quality.

When donating blood, keep a calm mind, and don't rush to get up and leave after donating blood, otherwise it will lead to brain ischemia and easy to develop vertigo. After donating blood, it is necessary to protect the needle mouth, press it with your hands to prevent kidney deficiency, and avoid bacterial infection of the needle hole. Try not to take a bath within three days after donating blood to prevent soap and water from entering the real bitterness, drink more water after donating blood, do not eat indigestible food, and ensure adequate rest, and the body can return to normal after two or three days.

Blood donation is a good thing, but minors under the age of 18 and seniors over the age of 55 are not allowed to donate blood. Adult men weighing less than 50 kg and adult women weighing less than 45 kg are not suitable for blood donation, because these lighter people have a small amount of blood in their bodies, and donating blood will affect their physical health and cause serious harm to their bodies.

People with high blood pressure also cannot donate blood, especially those with a systolic blood pressure of more than 140 and a diastolic blood pressure of more than 90. In addition to these people, people who are hepatitis B surface antigen positive or have hepatitis C antibodies and syphilis antibodies in their bodies cannot donate blood because their blood contains viruses, which are highly contagious, and they cannot be used by others after donating blood, otherwise it will cause the spread of the virus and endanger the health of others.

Pay attention to your age before donating blood, 18 to 55 years old is suitable for blood donation, people with normal weight, normal blood pressure; Patients with venereal diseases, leprosy, hepatitis, various tuberculosis diseases, and cardiovascular diseases are not allowed to donate blood;

Men weighing less than 50 kg and women weighing less than 45 kg are not able to donate blood, and people with abnormal blood pressure cannot donate blood, and they must be in good health to donate blood. Be sure to sleep well the night before donating blood and eat before donating blood.

Don't donate blood on an empty stomach, donate an appropriate amount of blood according to your physical condition, don't be too nervous, don't be afraid, don't leave immediately after donating blood, and rest for a while; Obese people, people with diabetes, people with liver disease, people with blood sickness, and people who are weak are not allowed to donate blood.

Don't be nervous, you must pay attention to rest after donating blood, don't take a shower immediately after donating blood, be sure to press the position of the needle hole correctly, and be sure to drink more water; People who have been vaccinated, who have had teeth extracted, people who have acute gastroenteritis, people who suffer from anemia, and people who have infectious diseases are not allowed to donate blood.

1. Drink alcohol with excitement: The food consumed before donating blood is very important, it will affect the quality of the blood, try to eat some light food, do not drink alcohol, and the blood contains alcohol can not be used.

2. Eating: You can't eat and destroy the socks before donating blood, because in this case, the blood will contain a lot of oil, which is not conducive to the quality of the blood.

3. Stay up late: Before donating blood, you must ensure or verify sufficient sleep, so as to avoid many problems that may occur when donating blood.

1. People of inappropriate age are not able to donate blood, and minors under the age of 18; Seniors over the age of 55 cannot donate blood.

2. People whose weight is not up to standard cannot donate blood, and adult men who weigh less than 50kg cannot donate blood; Adult females weighing less than 45kg cannot donate blood.

3. Patients with hypertension cannot donate blood, male patients with systolic blood pressure greater than 145mmHg, and diastolic blood pressure greater than 95mmHg cannot donate blood; Adult females with systolic blood pressure greater than 140mmHg and diastolic blood pressure greater than 90mmHg cannot donate blood.

4. People who fail to pass various tests, including hepatitis B virus antibody, hepatitis C antibody, syphilis antibody and AIDS antibody test, are not able to donate blood.