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Blood transfusion is a medical treatment to replace the blood or parts of blood that your body has lost. The blood goes through a tube from a bag to an intravenous (IV) catheter and into your vein.
You may need a blood transfusion after losing blood from an injury, a major surgery, an illness that causes bleeding, or an illness that destroys blood cells.
Transfusions are also used to give you the parts of blood—such as platelets, plasma, or substances that cause clotting—that your body needs to fight an illness or stop bleeding.
Before you receive a blood transfusion, your blood is tested to find out what your blood type is. Blood or blood parts that are a match with your blood type are ordered by your doctor. Blood is typed as A, B, AB, or O. It is also typed as Rh-positive or Rh-negative.
Your blood is also screened to look for antibodies that might react with the blood that is given to you. The blood you are getting is checked and rechecked to make sure that it's the right type for you.
A sample of your blood is mixed with a sample of the blood you will receive to check for problems. Before actually giving you the transfusion, a doctor and nurses will look at the label on the package of blood and compare it to your hospital ID bracelet and medical records. The transfusion begins only when all agree that this is the correct blood and that you are the correct person to receive it.
To receive the transfusion, you will have an intravenous (IV) catheter inserted into a vein. A tube connects the catheter to the bag containing the blood, which is placed higher than your body. The blood then flows slowly into your vein. A doctor or nurse will check you several times during the transfusion to watch for a reaction or other problems.
Blood transfusions have many benefits and are often life-saving. But they also have a few risks. Possible risks include:
Follow-up care is a key part of your treatment and safety. Be sure to make and go to all appointments, and call your doctor or nurse call line if you are having problems. It's also a good idea to know your test results and keep a list of the medicines you take.
Call 911 anytime you think you may need emergency care. For example, call if:
Call your doctor or nurse call line now or seek immediate medical care if:
Watch closely for changes in your health, and be sure to contact your doctor or nurse call line if you have any problems.
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Current as of: November 8, 2019
Author: Healthwise Staff
Medical Review:Adam Husney MD - Family Medicine & E. Gregory Thompson MD - Internal Medicine & Martin J. Gabica MD - Family Medicine
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