Transfusion and risk of infection in Canada: UPDATE 2004.

Although multiple critical steps are taken to minimize the risk of infection from transfusion of blood or blood products in developed countries, this risk can never be entirely eliminated. In Canada, the risks of noninfectious transfusion reactions, such as transfusion-related acute lung injury and major allergic or anaphylactic reactions, are greater than that of infection. This updated practice point provides an overview of transfusion infection risks in Canada. Infectious agents, systemic conditions, donor and recipient factors, and collection and infusion techniques are considered. Suggestions are offered to improve both system and process, and to help practitioners who are discussing informed consent with patients and parents before administering blood or a blood product.