Solid Phase Blood Bank Testing
Pre transfusion testing is necessary to assure abo and rh type compatibility between donor and patient blood as well as to disclose the presence of red blood cell rbc alloantibodies potentially causing transfusion reaction.
Solid phase blood bank testing. Solid phase techniques in blood transfusion serology. So far no other system has been developed which can match its simplicity versatility and general reliability. Solid phase testing occurs in small microwells where antigens are bound to the bottom of the well and the patients plasma is incubated in the well. Is this video i explain how to perform an antibody screen test with use of the gel card method.
Testing principles some covered in blood groups podcast and handout. It represents the most important pre transfusion testing used in routine practice. See diagram below positive. All subsequently crossmatched units will be tagged with this unique number.
This test is performed prior to the antibody id to see if an. The blood specimen the request form and the remaining numbers are sent to the blood bank. Obviously you cant do this if all cells tested are reacting but for the rest of your patients its recommended. In fact immucor the proven leader in blood bank automation brings you solid phase technology so reliable capture r ready screen is the method for screening approximately 98 of the north american blood supply.
Basic reaction in blood banking 2. Tm blood bank reviewing the basics virginia hare mtascpsbb immunohematology reference laboratory american red cross southern region douglasville georgia. The need is constant. For nearly a century erythrocyte agglutination has persisted as the most widely used method for the demonstration of antigen antibody reaction in immunohematology.
The blood bank specimen identification system consists of an armband comprised of unique peel off numbers. Tube gel solid phase shan yuan md last updated 382011 tube testing the old fashioned way. Beck ml plapp fv sinor lt rachel jm. Agglutination or hemolysis uncommon negative.
With a full line of assays to suit your specific needs and innovative equipment to facilitate and automate the process capture becomes the only. Traditional format still widely used mix the rbc and the plasma enhancement solution ahg incubate to allow antibody rbc binding shake spin and read. A unique label from the armband is placed on the tube and requisition. The major disadvantage.
Immediately after the blood is drawn the patient id band is placed on patient. Define the most commonly performed blood bank tests and related terminology. A sensitizationcoating 1 binding of antibody to surface of rbcs 2 dependent on multiple factors see below b bridge formation 1 linkage of adjacent rbcs that are coated with antibody 2 igm is far more capable of forming. No agglutinatiion or.
Discuss sample collection and routine pre transfusion testing. Solid phase testing a method of testing for incompatibility between plasma antibodies and target rbc antigens.