Blood transfusions

Generality

Transfusions consist in the transfer of a certain amount of blood from one subject (donor) to another (recipient), intravenously. This procedure is used in response to specific clinical needs.

Transfusions are used, in particular, to replenish the blood lost in the case of post-traumatic or surgical bleeding, or in the treatment of certain diseases that cause severe anemia. The use of blood transfusions is also indicated to correct coagulation disorders and maintain the volume (mass of circulating blood) and the exchange of respiratory gases (oxygen and carbon dioxide) at adequate levels.
Transfusions may involve the use of whole blood, blood components (red blood cell concentrates, platelets, plasma, etc.) and / or blood products.

What are

Transfusions consist of the infusion of blood (whole or some of its components) from a donor to a recipient.
Blood transfusions can be:

• Homologous, if donor and recipient are two different people. In this case, it is essential to establish compatibility, defining the blood group of the giver and the recipient, to avoid serious consequences;
• Autologous, if donor and recipient are the same person. In the latter case, it is obviously necessary to proceed with the collection of blood bags before the time of need (for example, in preparation for a scheduled surgery).