blood transfusion

the transfer of blood from a donor to a recipient to address medical needs

A blood transfusion is a medical procedure where blood is transferred from one person, called the donor, into the bloodstream of another person, known as the recipient. This procedure is typically performed to replace blood lost because of surgery or injury, to treat certain medical conditions affecting blood production or function, or to improve blood flow and oxygen delivery in seriously ill patients. Blood transfusions can include whole blood or specific components such as red blood cells, plasma, or platelets, depending on the patient's needs. Transfusions are performed under strict medical supervision to make sure the new blood works well with the recipient's body and minimize risks such as infections or immune reactions.