Which is painful between donating blood and drawing blood, and from which part of the blood is drawn

All of them have to puncture the veins.

Generally speaking, blood donation should be done with small blood primary screening, the ring finger blood collection is a little painful, the finger peripheral nerves are abundant, and the arm vein puncture.

The needle is 16 gauge, which is one of the largest. Very sharp with a thicker inner diameter.

Personally, it is painful to collect blood from the ring finger, but the time is very short.

Venipuncture is also painful, and for regular blood donors, the pain of frequent puncture at the scar site is still very obvious.

The amount of blood collected for donation (whole blood, for example) is generally as follows:

to 500 ml, the highest domestic is 400, and foreign is 300-500 ml.

The blood draw is a small amount or even a small amount of blood, and the blood drawn by the laboratory does not need to be refluxed, and there is no need to worry about blood clotting, so the inner diameter is relatively small, and the amount of blood drawn is generally only a few milliliters.

The compression time after collection is also shorter than that of a needle for blood donation.

Therefore, it is generally believed that the pain of blood donation is stronger than that of laboratory blood drawing, which is inseparable from the way blood samples are collected by blood donation, the unit time and volume of blood collected.

When the landlord says "blood drawing", he means that he draws blood from a needle in the elbow during a physical examination, right?

If so, of course, donating blood is more painful than drawing blood.

Because needles below 12 gauge are generally used when drawing blood, and 16-gauge needles are used when donating blood;

Moreover, it generally only takes about ten seconds to half a minute to draw blood, and the fastest blood donation takes more than two minutes.

So, in terms of feelings, donating blood when the needle is stuck is more painful than drawing blood.

Blood donation involves drawing blood from a vein in the arm.

1) Pathways. Citizens can participate in blood donation organized by units (including streets, villages, schools); You can also register blood donation at the blood donation office in the jurisdiction or donate blood at the blood station or mobile blood collection vehicle, and citizens must have a physical examination and fill in the health consultation form truthfully before donating blood.

2) Steps. 1. Blood donation registration: Please bring your ID card, military ID, soldier ID, passport, driver's license with ID number and other valid ID documents for blood donation registration.

2. Conduct a physical examination: In order to ensure the quality of the blood, check whether there are blood-borne diseases or hereditary diseases, and determine your blood type, and for the sake of the blood donor's health, a physical examination must be carried out. So as not to happen like the tragedy of a large amount of blood pouring out of the blood bank, and pour out everyone's love!

4. Brush your arm: If your arm is not clean, it is easy to cause infection and blood contamination at the puncture site of your arm. Be sure to scrub carefully.

5 Iodine tincture disinfection: Do not touch the sterilized area after disinfection.

7. Blood collection: Please lie on the blood collection chair, keep an inclined posture, and clench your fists before puncture; Once the lancet is inserted into the vein, the fist is clenched and relaxed until the blood collection is complete.

8. Hemostasis: After blood collection, please press and hold the hemostatic cotton ball for at least 5 minutes, and please do not twist the hemostatic cotton ball to prevent subcutaneous hematoma. Then keep the cotton ball pressed against the needle for 4-6 hours to prevent infection.

Before donating blood, the initial screening is generally to prick the fingertip of the ring finger, but each place has its own collection method. Not necessarily consistent.

Blood donation is generally collected from the outside of the elbow or by looking for other relatively elastic veins in the arm.

1) Hemoglobin test; 2) blood group testing; 3) Liver function test: aminotransferase; 4) Blood infectious disease examination: At present, most of the hepatitis B virus surface antigen is tested, and some are also tested for Treponema pallidum.

After donation: blood type, alanine aminotransferase, hepatitis B virus surface antigen, hepatitis C virus antibody, treponema pallidum antibody, HIV antibody and B.

Blood donation is allowed only when the blood donor is checked for infectious diseases or genetic diseases, as well as whether the body functions are suitable for blood donation, and it does not affect their own health and does not bring diseases to the health of others.

There are 7 items of blood donation test: blood type, hemoglobin, aminotransferase, hepatitis B surface antigen, hepatitis C antibody, syphilis antibody, and HIV antibody. The last three items are tested after blood donation, and if they are found to be positive for HIV antibodies, they should be reported to the local disease control department for re-examination and monitoring.

Fill in the form before, and then the initial test, the items are: blood type, hemoglobin, aminotransferase, hepatitis B. Blood can be donated after passing the initial examination.

A blood donation certificate will be issued immediately after the blood donation is completed. After collecting blood in the blood donation vehicle or blood donation house, it will be sent to the blood station laboratory at 5 or 6 p.m. (the test items are: blood type, hemoglobin, aminotransferases, hepatitis B, hepatitis C, AIDS, syphilis) are generally tested in the evening of the same day.

The vast majority of blood is fine, and the results are available the next day. The blood in question will give results on the third day. As a rule of thumb, donors will be notified by text message as soon as the next day and as late as a week after donation.

If there is a problem with the blood, the blood donor will be notified when it is detected. After three days, you can ask **, almost all of them will have results, and you can also check any blood donation point in the city with your ID card or blood donation certificate, and the system is networked.

In order to ensure the health of blood donors, the "Blood Donor Health Examination Standards" stipulates that blood donors must undergo the following physical examinations:

1 Check age: The age suitable for blood donation is 18-55 years old.

2. Weight: not less than 50 kg (kg) for men and 45 kg (kg) for women.

3 Blood pressure: 90 systolic blood pressure < 140mmHg, 60 diastolic blood pressure < 90mmHg.

4 Pulse: 60-100 beats per minute, 50-100 beats per minute for athletes with high endurance.

5 Normal body temperature.

6. Normal development, medium or above nutrition.

7 **No yellow staining, no wound infection, no large-scale ** disease, no obvious swelling of superficial lymph nodes.

8 There is no serious disease in the facial features, no yellow staining of the sclera, and no enlargement of the thyroid gland.

9 No severe disability in the limbs, no redness, swelling and dysfunction of the joints.

10 chest; Cardiopulmonary normal.

11 Abdomen: normal, no mass, no tenderness, no hepatosplenomegaly.

Hepatitis B and other genetic infectious diseases.

Age, weight, blood pressure, pulse, body temperature, blood type, hepatitis B virus surface antigen, hepatitis C virus antibody, HIV, syphilis, etc.

In the current compulsory blood donation, the blood must be screened, and there are two screenings for the virus.

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.

Contributing is everyone's virtue, but something like donating blood must be premised on your own health! How can I make such a contribution if I am not healthy?

You're better off not donating blood. It's good to contribute, but it's important to be healthy.

It's good to donate whole blood, plasma is not good, plasma is the nutrient of the human body, people recover slowly, and it is not as good as it is transmitted, you have to donate 600 at a time! People can't stand it.

It's all very painful to feel firsthand.

I dedicated!

Before donating, you will test your blood type by a needle, and then you will go in and take blood from the vein in the middle of your elbow, and the needle is very thick. He will give you a ball for you to pinch, and then the bleeding will stop automatically when it reaches 200ml.

The above is to donate whole blood, if it is a component of blood, you have to return the transfusion, which has not been done, but be careful to faint after donating

A blood test is required before donating blood.

Don't eat greasy food or drink alcohol at two meals before donating blood, but don't have an empty stomach either, and eat light foods such as steamed bread and vegetables; And it's best to take a shower or wash your arms.

It doesn't hurt when you donate blood.