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If a person without a Kidd blood antigen (for example a Jka-Jkb+ patient) receives a Kidd antigen (Jka-antigen for example) in a red blood cell transfusion and forms an alloantibody (anti-Jka); upon subsequent transfusion with Jka-antigen positive red blood cells, the patient may have a delayed hemolytic transfusion reaction as their anti-Jka antibody hemolyzes the transfused Jka-antigen ...
An acute hemolytic transfusion reaction (AHTR), also called immediate hemolytic transfusion reaction, is a life-threatening reaction to receiving a blood transfusion. AHTRs occur within 24 hours of the transfusion and can be triggered by a few milliliters of blood. The reaction is triggered by host antibodies destroying donor red blood cells.
It is often confused with transfusion-related acute lung injury (TRALI), another transfusion reaction. The difference between TACO and TRALI is that TRALI only results in symptoms of respiratory distress while TACO can present with either signs of respiratory distress, peripheral leg swelling, or both. [ 4 ]
Kidd antibodies are often capable of binding complement and causing intravascular hemolysis. More often, however, Kidd antibodies cause acute extravascular hemolysis. [7] They are a notorious cause of delayed hemolytic transfusion reactions, and may occur up to a week after transfusion in some instances.
Serum sickness is a type III hypersensitivity reaction, caused by immune complexes. [2] When an antiserum is given, the human immune system can mistake the proteins present for harmful antigens . The body produces antibodies, which combine with these proteins to form immune complexes. [ 2 ]
Transfusion hemosiderosis; Transfusion-associated circulatory overload; Transfusion-associated graft-versus-host disease; Transfusion-dependent anemia; Transfusion-related acute lung injury; Transfusion-related immunomodulation
Transfusion-related acute lung injury (TRALI) is a syndrome that is similar to acute respiratory distress syndrome (ARDS), which develops during or within 6 hours of transfusion of a plasma-containing blood product. Fever, hypotension, shortness of breath, and tachycardia often occurs in this type of reaction.
P1PK (formerly: P) is a human blood group system (International Society of Blood Transfusion system 003) based upon the A4GALT gene on chromosome 22. The P antigen (later renamed P1) was first described by Karl Landsteiner and Philip Levine in 1927. [1] The P1PK blood group system consists of three glycosphingolipid antigens: P k, P1 and NOR.