Is there a blood test before donating blood, and what is a blood test for blood donation

Do I need a blood test before donating blood? Blood tests are usually done before donating blood.

If you don't know your blood type, you need to take a blood test, just check your blood type. After that, you can draw blood, after the blood is drawn, part of the blood in the tube will be put into the test tube for testing, if the blood test is faulty, it will be destroyed, and if there is no problem, it will be put into the blood bank, and you can check the blood situation according to the ** and ** on the blood donation book.

What to do before donating blood: Do a blood test before donating blood.

Before donating blood, blood tests are required, that is, initial screening, and the examination items are: blood type, hemoglobin, hepatitis B surface antigen, and aminotransferases if possible. In addition to the above four items, hepatitis C, syphilis and AIDS are also retested after blood donation.

A physical exam is done before donating blood.

1. Ask for age: 18-55 years old to donate blood.

2. Weighing: 50 kg for men and 45 kg for women.

3. Blood pressure: 90-140 60-90mmHg, pulse pressure difference: 30mmHg.

4. Feel the pulse: 60-100 minutes.

5. Measure body temperature: determine whether there is a fever.

6. Inspection**: no yellow staining, no wound infection, no large-scale ** disease, no obvious swelling of superficial lymph nodes.

7. Inspect the facial features: no serious disease, no xanthochromia of the sclera, and no thyroid enlargement.

8. Examination of limbs: no serious disability, no serious functional impairment and no redness and swelling of joints.

9. Listen to the heart and lungs: whether there is a murmur.

You must have a blood test before donating blood. See if you see if the blood is qualified, is there any infectious disease? Only when the blood is qualified can you donate blood.

In order to ensure the safety of clinical blood and protect the physical rights and interests of blood donors, blood donation laboratory tests are carried out in two times. It is necessary to meet some specific indicators that do not meet the requirements for clinical blood use through rapid laboratory tests before donating blood. The specific tests vary from place to place, but I have transaminases, blood type, blood specific gravity, hepatitis B surface antigen, and syphilis.

After the blood meets the requirements of the preliminary laboratory test, it can enter the unpaid blood donation link. After the unpaid blood donation, the blood of the participating unpaid blood donation is sent back to the laboratory and will be tested again for laboratory tests, specific items are, transaminases, blood type, syphilis, AIDS, hepatitis B surface antigen.

It should be noted that because it involves the safety of clinical blood, the laboratory test of unpaid blood donation is higher than the physical examination requirements of the hospital. For example, aminotransferases, higher than 40, cannot participate in unpaid blood donation. However, if you cannot participate in unpaid blood donation, it does not mean that you are sick.

Testing at a blood bank is not a substitute for a medical check-up requirement. Therefore, if the test is unqualified, there is no need to be too nervous, and you can go to the hospital for specific and specific examinations for the unqualified items.