[Labile blood products and their preparation].

Licensed labile blood components are put down on a regulatory list by the French Health Authority. They are prepared by the French National Blood Service and controlled according to regulatory and validated procedures. Depending on the origin of the blood, labile blood components are either homologous (donors) or autologous (from patients). Blood components (red cell concentrates, platelet concentrates and fresh frozen plasma) are processed within sterile closed disposable systems using either post-donation processing of whole blood or apheresis technology. All homologous blood components are leuco-reduced. Depending on specific settings, blood components could be washed, gamma irradiated or cryopreserved. Fresh frozen plasma is either "donor retested" after quarantine or viro-attenuated by solvent detergent treatment. Release is only allowed after a full conformity control of each blood component unit.