But there are some simple things you can do to take care of yourself before you go home. Most people feel fine after they give blood. The puncture wound caused by the poke from the needle for giving blood usually heals without trouble. If it's drawn for treatment, then more or less than a pint may be taken. For donation, about a pint of blood is drawn. These take more blood than the sample that is needed for simple lab tests. Or you may have had blood removed to treat a medical condition, such as hemochromatosis or polycythemia. You may have just donated blood so that it can be used to help someone else. People have their blood taken (drawn) for several reasons. This procedure is called phlebotomy (say "fleh-BAW-tuh-mee"). (It takes a few weeks to replace red blood cells.) You will have to wait 56 days before you can give whole blood again. Your body will replace the lost fluid in 24 hours. You will be asked these questions every time you give blood, because the list of who can give blood may change, or your health may change. Some of these questions are very personal, so you will be asked them in private. But you shouldn't donate blood if you feel like you're getting a cold or the flu.īefore you donate, a health professional will ask about your current and past health to make sure that you can donate. You may be able to give blood if your health problem is under control. Having a long-term illness, such as diabetes, doesn't mean you can't donate. You had a recent needlestick or got a tattoo or piercing.You have certain health problems, such as HIV.Your blood pressure will be checked before you donate. Your blood pressure is too high or too low.You have traveled to certain countries.Before you donate, you will have a test to check your hemoglobin level. You don't have enough hemoglobin in your blood.The length of time you must wait between donations depends on the product you are donating, such as whole blood or platelets. You recently donated blood or a blood product.For example, you may not be able to donate if: Some people can't donate because of health or other issues. If you are under 18 years old, you may need to meet a certain height and weight measurement. (In some states, you can donate if you are 16 years old and get permission from a parent.) This makes sure that the person who needs blood gets the right type. The whole process-including answering questions and having a short exam-takes up to an hour.ĭonated blood is tested to make sure that it's safe to use. When you donate whole blood, you give about 1 pint (473 mL). You may be able to donate during blood drives at your workplace. You can donate blood at American Red Cross clinics or other clinics or blood banks. Blood that contains all the parts is called whole blood. If you don't need it, your blood may be donated to someone else.ĭonated blood includes red blood cells and the other things that make up the blood, such as platelets and plasma. If you donate blood before you have surgery, your own blood will be kept for you in case you need a blood transfusion. It also helps people who have an illness such as cancer, anemia, sickle cell disease, or hemophilia. Donated blood helps people who have lost blood in an accident. Blood donation means giving some of your blood so that it can be used to help someone else.
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