Do you know these blood donation knowledge?

You should donate blood while you are still young. It is not suitable to donate blood when you are too young or too old.

1. Age requirements for blood donors

Article 2 of the Blood Donation Law of the People's Republic of China stipulates: "The state encourages healthy citizens aged 18 to 55 to donate blood voluntarily."

The National Standard of the People's Republic of China "Requirements for Health Examination of Blood Donors" (GB18467-2011) states: "The state advocates that the age of blood donors should be between 18 and 55 years old; if a multiple blood donor who has no previous blood donation reaction and meets the health examination requirements actively requests to donate blood again, the age can be extended to 60 years old."

The "Requirements for Health Examination of Blood Donors" clearly stipulates the extension of the age limit for blood donors, which is based on considerations for the physical health of blood donors and to meet the donation wishes of some regular blood donors.

For voluntary blood donors, a satisfactory weight is good. Being too thin means you cannot donate blood, and being too fat can easily lead to high blood pressure and high blood lipids, which may also prevent you from donating blood.

2. Weight requirements for blood donors

The "Health Examination Requirements for Blood Donors" stipulates that the weight of blood donors should be: male ≥50kg, female ≥45kg.

Many places have set additional weight requirements for platelet donors, requiring both men and women to weigh 50kg or more.

3. Blood pressure regulations for blood donors

Only by maintaining a calm mind and stabilizing blood pressure can one become a glorious voluntary blood donor.

The "Health Examination Requirements for Blood Donors" stipulates that blood pressure should be: 90mmHg≤systolic pressure<140mmHg; 60mmHg≤diastolic pressure<90mmHg, pulse pressure difference≥30mmHg. If the examination value is not within this range, you cannot donate blood. If you have hypertension, even if your blood pressure is within the normal range after taking antihypertensive drugs, you cannot donate blood.

Just do your best when donating blood. Both 200 ml and 400 ml have their value and significance. Donating more or less is love.

Image source: Pixabay

4. Blood Donation Quantity Regulations

The blood donation amount stipulated in the "Health Examination Requirements for Blood Donors" is:

Whole blood donors can donate 400mL, 300mL, or 200mL of whole blood each time.

Single platelet donors: each donation may include 1 to 2 therapeutic units, or 1 therapeutic unit and no more than 200 mL of plasma. The total amount of platelets and plasma collected in a year shall not exceed 10 L.

There are always people who question those who donate blood hundreds of times. For them, criticism cannot shake their firm belief, and donating blood every month has become the norm.

V. Provisions on the interval between blood donations

Requirements for Health Examination of Blood Donors:

1. Interval between whole blood donations: no less than 6 months;

2. The interval between platelet donations should be no less than 2 weeks and no more than 24 times per year. If special matching is required, the shortest interval should be no less than 1 week with the approval of the doctor.

3. The interval between platelet donation and whole blood donation should be no less than 4 weeks;

4. The interval between whole blood donation and platelet donation should be no less than 3 months.

Some special economic zones, such as Hainan and Shenzhen, have separate regulations on the interval between blood donations.

6. Real-name blood donation

In order to protect the safety of blood donors, the Blood Station Management Measures stipulates:

Blood donors should present valid identification documents before donating blood, and blood stations should verify and register them.

Those who donate blood using someone else's identity should bear responsibility in accordance with relevant laws and regulations.

Time flies, but everyone should try to do something meaningful in the limited time. Donating blood for free cannot be an unknown hero. It is not for leaving a name, but for being responsible for yourself and the blood used.

7. Valid ID

Valid identification documents for blood donation are not specifically identity cards, but also include military (police) officer certificates, soldier certificates, passports, Hong Kong and Macau Passes, Taiwan Compatriot Certificates, and driver's licenses, etc.

When donating blood, presenting the electronic ID card from the public security service platform has the same validity as the card-based ID card.

For blood donors, they can be anyone in their dreams, but when donating blood, the staff will definitely verify the authenticity of the identity.

8. Precautions before donating blood

The day before donating blood, you should ensure adequate sleep, maintain your daily living habits, and avoid long-term strenuous exercise.

Learn some common knowledge about blood donation and eliminate nervousness.

You must bring your ID card or other valid identification documents on the day of blood donation.

Do not donate blood on an empty stomach. Eat a light diet. Do not eat high-fat or high-protein foods such as fatty meat and fried dough sticks in the two meals before donating blood. Do not drink alcohol, etc.

IX. Blood Donation Process

A blood donation generally involves the following six steps:

1. Blood donation registration: bring your valid ID and fill in the Blood Donation Registration Form

2. Health consultation: The doctor will conduct health consultation on the blood donor and measure blood pressure, pulse, and weight.

3. Blood screening: Take blood from the finger for testing, such as hemoglobin and alanine aminotransferase (ALT) testing, etc.

4. Waiting for the results: Rest and wait for the initial blood screening results

5. Blood donation stage: blood will be donated after passing the initial blood test

6. Rest after donating blood: Press the needle hole for 10-15 minutes to prevent subcutaneous blood stasis, and rest for at least 10-15 minutes.

10. Donating blood after vaccination

Vaccination without exposure history

Those who have received inactivated vaccines, recombinant DNA vaccines, or toxoid injections: Those who have no symptoms or adverse reactions should postpone blood donation until 24 hours after receiving the vaccine, including: typhoid vaccine, freeze-dried inactivated Japanese encephalitis vaccine, adsorbed diphtheria, pertussis and tetanus combined vaccine, inactivated hepatitis A vaccine, recombinant hepatitis B vaccine, whole influenza virus inactivated vaccine, etc.

Those who have received live attenuated vaccines: They can donate blood two weeks after the last vaccination with live vaccines such as measles, mumps, polio, etc., or four weeks after the last vaccination with live rubella vaccine, human rabies vaccine, live attenuated Japanese encephalitis vaccine, etc.

Vaccination for exposure history

People who have received rabies vaccination after being bitten by an animal can donate blood one year after the last vaccination.

11. Precautions after blood donation

After donating blood, apply pressure to the puncture site to stop bleeding for 10-15 minutes, and rest and observe for at least 10-15 minutes.

Keep the needle hole dry and clean and do not get it exposed to water within 4 hours to avoid infection.

Do not lift heavy objects with your blood donation arm for 24 hours.

Do not do strenuous exercise within 1-2 days and take adequate rest.

Drink more water and take some foods high in vitamin C and iron, such as lean meat, eggs, vegetables and fruits. There is no need to take any nutritional supplements.

If there is bleeding at the needle hole and redness or swelling occurs, apply cold compress within 24 hours and hot compress after 24 hours. Seek medical advice if necessary.

(Knowledge point source: Donate blood while you are young)

Contributor: Chongqing Jiulongpo District Science Popularization Creation and Communication Association Review expert: Tao Ran, deputy chief physician of Jiulongpo District Center for Disease Control and Prevention Statement: Except for original content and special instructions, some pictures are sourced from the Internet for non-commercial purposes and are only used as popular science materials. The copyright belongs to the original author. If there is any infringement, please contact us to delete it.