blood disorders
Blood Products
Introduction
People are sometimes given Overview of Blood Transfusion of whole blood during severe bleeding (for example after an injury or pregnancy complications), but usually they are given only the blood component they need. The different components of blood include Red Blood Cells None Platelets None Plasma None White Blood Cells None Plasma contains Antibodies (immunoglobulins) and clotting factors, which are sometimes separated from plasma. Not all components are produced from a particular unit of donated blood. For example, immunoglobulins and clotting factors may be prepared from plasma pooled together from many donors. White blood cells and platelets are obtained by Apheresis . Depending on the situation, people may receive only the red blood cells, platelets, plasma, or Sometimes blood products are treated with radiation to reduce the risk of the transfused white blood cells attacking the recipient ( Graft-versus-host disease ). Some blood products can be treated with a chemical that reduces the risk of transmission of infection-causing microorganisms. In this procedure, called pathogen reduction technology, certain blood products are treated with a chemical that reduces the risk of transmission of almost all microorganisms. 