tailieunhanh - Clinical Transfusion Medicine - part 3

Chính quyền của các sản phẩm máu đòi hỏi phải tuân thủ thích hợp với một thủ tục bằng văn bản, các yếu tố quan trọng trong đó được trình bày trong Bảng . Đầu tiên là xác định người nhận thích hợp và đảm bảo khả năng tương thích của sản phẩm. Đối với truyền tế bào hồng cầu, cả hai khả năng tương thích ABO | The Administration of Blood Products The administration of blood products requires proper compliance with a written procedure the important elements of which are outlined in Table . First is proper recipient identification and ensuring the compatibility of the product. For red cell transfusions both ABO and Rhesus compatibility should be ascertained. If there are any questions at this point they should be immediately addressed to the blood bank for clarification. Under certain circumstances non identical ABO blood will be administered to patients for example blood group O red cells to non-O recipients or blood group A red cells to AB recipients. In addition Rhesus negative products may be safely transfused to Rhesus positive patients and on occasion when Rhesus negative shortages exists Rhesus positive units may knowingly be transfused to certain groups of Rhesus negative patients. When blood is dispensed from a blood bank a record is attached to the bag. This record contains information identifying the blood in the container ABO Rh and unit and information identifying the intended recipient name medical record other identifiers . This record therefore links the suitability of the blood in the container with the recipient. Confirming the correctness of this information at the bedside may be the last opportunity to avert a severe hemolytic reaction. Inspection of the blood bag for leaks and the general appearance of the product is important to detect contamination of the product with bacteria or other substances. The administration set should have an in-line filter and routine in 8 travenous infusion sets for fluids are not acceptable. This filter removes particles with an average size of between 170-260 microns p . Blood administrations sets commonly have both a drip chamber and a filter chamber the former allowing the calculation of the rate of administration of blood and the filter chamber en suring the removal of debris which may have accumulated during .