Is everyone allowed to donate blood? No. Only those who meet the requirements of the "Health Examination Standards for Blood Donors" issued by the Ministry of Health can donate blood, so what are the specific physical requirements for blood donation?
Age requirement for blood donation
The age requirement for blood donation is 20-50 years for men and 20-45 years for women. If the difference in age is only six months or less, and all other aspects are normal, the donor can donate blood if he or she is determined to have a maternity test.
Weight, blood pressure and growth requirements
Men weighing more than 50 kg and women weighing more than 45 kg can donate blood; blood pressure should be 12-20 kPa systolic, 8-12 kPa diastolic and 4-5 kPa differential pulse; pulse rate: 60-100 beats/min, >=50 beats/min for highly enduring athletes; physical growth and development symptoms, no deformities or disabilities can donate blood.
Blood screening requirements
1. Blood specific gravity screening, copper sulfate method: >1.052 for men and >1.050 for women.
2. Blood group typing: ABO blood group must match the positive and negative stereotypes. In areas where conditions exist or where the rate of Rh negativity is high, Rh (D) typing should be done.
3. Liver function test: The alanine aminotransferase activity should be less than 25 units as an indicator. Failure of this indicator should not be used for blood donation, but it does not mean that there is definitely a problem with liver function.
4. Blood infectious disease examination: check four items, including hepatitis B virus surface antigen, hepatitis C virus antibody, HIV antibody and syphilis serological examination. Anyone who has a positive test is not allowed to participate in blood donation.
Blood Donor Skin Requirements
Except for patients with dermatitis in large areas of the body followed by dermatitis in the elbow veins on both sides of the body, who should not donate blood, small areas of non-infectious dermatitis of all kinds are allowed to participate in blood donation.
Occupational requirements for blood donors
Special occupational workers such as those working at high altitude, high temperature, underwater, drivers and those who are frequently exposed to harmful substances and radioactive substances are not suitable to participate in blood donation in order to protect their health and production safety.
Requirements for Female Blood Donors
Women should withhold blood donation within 9 months after delivery, within 6 months after miscarriage, as well as during pregnancy, lactation and in groups of women with menstrual disorders.