Blood transfusion

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Definition

By Mayo Clinic staff

In a blood transfusion, donated blood is added to your own blood. A blood transfusion may also be done to supplement various components of your blood with donated blood products. Sometimes a blood transfusion is done with blood that you've donated ahead of time before you undergo surgery.

During a typical blood transfusion, whole blood or certain parts of blood are infused through an intravenous (IV) line and needle that's placed in one of the veins in your arm. A blood transfusion usually takes one to two hours, though in an emergency it can be done much faster.

A blood transfusion boosts blood levels that are low, either because your body isn't making enough or because blood has been lost during surgery, injury or disease.

References
  1. Blood transfusion. National Heart, Lung, and Blood Institute. http://www.nhlbi.nih.gov/health/dci/Diseases/bt/bt_all.html. Accessed Nov. 4, 2009.
  2. Blood transfusion. The Leukemia and Lymphoma Society. http://www.leukemia-lymphoma.org/attachments/National/br_1144786293.pdf. Accessed Nov. 4, 2009.
  3. Why cancer patients might need blood product transfusions. American Cancer Society. http://www.cancer.org/docroot/ETO/content/ETO_1_4x_Why_Cancer_Patients_Might_Need_Blood_Product_Transfusions.asp?sitearea=ETO. Accessed Nov. 4, 2009.
  4. Katz EA. Blood transfusion: Friend or foe. Advanced Critical Care. 2009;20:155.
  5. Rawn J. The silent risks of blood transfusion. Current Opinion in Anesthesiology. 2008;21:664.
  6. Blood component transfusion: What it involves. American Cancer Society. http://www.cancer.org/docroot/ETO/content/ETO_1_4X_Blood_Transfusion.asp?sitearea=ETO. Accessed Nov. 4, 2009.
  7. Possible risks of blood product transfusions. American Cancer Society. http://www.cancer.org/docroot/ETO/content/ETO_1_4x_Possible_Risks_of_Blood_Product_Transfusions.asp?sitearea=ETO. Accessed Nov. 4, 2009.
  8. Blood and its components. American Cancer Society. http://www.cancer.org/docroot/ETO/content/ETO_1_4X_Blood_And_Its_Components.asp. Accessed Nov. 28, 2009.
  9. Jacob EK (expert opinion). Mayo Clinic, Rochester, Minn. Dec. 11, 2009.
  10. Anderson CF (expert opinion). Mayo Clinic, Rochester, Minn. Dec. 10, 2009.
MY01054 Jan. 21, 2010

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