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Kidd antibodies are dangerous as they are capable of causing severe acute hemolytic transfusion reactions. They are unique in that they are capable of dropping to low or even undetectable levels after several months following an exposure. [5] Thus, on pre-transfusion testing, an anti-Jka or -Jkb may go undetected.
Blood compatibility testing is routinely performed before a blood transfusion.The full compatibility testing process involves ABO and RhD (Rh factor) typing; screening for antibodies against other blood group systems; and crossmatching, which involves testing the recipient's blood plasma against the donor's red blood cells as a final check for incompatibility.
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.
The Lu(a−b+) phenotype is the most common in all populations, whereas the Lu(a−b−) phenotype is uncommon. Though present in the fetus, it is seldom the cause of erythroblastosis fetalis or of transfusion reactions.
The first practical use of blood typing in transfusion was by an American physician Reuben Ottenberg in 1907. Large-scale application began during the First World War (1914–1915) when citric acid began to be used for blood clot prevention . [ 10 ]
[1] [2] The most common reason for using washed red blood cells in transfusion medicine is to prevent the recurrence of severe allergic transfusion reactions that do not respond to medical treatment. The usual cause of these allergic reactions is proteins in the donor plasma. [3] These proteins are removed by the process of washing the red ...
In other cases, "least incompatible" blood (the blood unit that gives the weakest reactions during crossmatching) may be suitable. [5] [4] It is difficult to secure Jr(a) negative donor blood due to the rarity of this blood type. [6] ABCG2 is a uric acid transporter, and the Jr(a) negative phenotype is associated with gout in Japanese ...