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Blood transfusion is a medical treatment to replace blood or
portions of the blood lost through injury, surgery, or disease.
During a transfusion, people normally receive only the parts of
blood needed to treat their conditions. Whole blood is now rarely given as a
Blood for transfusions may come from anonymous donors, or a person
can bank his or her own blood in preparation for surgery.
Current as of:
October 13, 2016
E. Gregory Thompson, MD - Internal Medicine & Brian Leber, MDCM, FRCPC - Hematology
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