Which blood group is associated with antibodies Jka and Jkb?

The Kidd blood group system is indeed associated with the antibodies Jka and Jkb. The Kidd antigens are significant in blood transfusion medicine as they can cause delayed hemolytic transfusion reactions if incompatible blood is transfused. The presence of these antibodies indicates that the individual has been sensitized to those specific antigens, which can occur through previous transfusions or pregnancies.

In the Kidd system, individuals may express the Jka and Jkb antigens, and these are important to consider for blood compatibility. Antibodies against these antigens may develop in patients who lack these antigens, making the identification and typing of Kidd antigens crucial in creating a safe transfusion protocol.

The other blood groups mentioned—Duffy, Lewis, and MNS—are associated with different antigens and antibodies, differentiating them from the Kidd group. The Duffy blood group has Duffy antigens, primarily Fya and Fyb, the Lewis system has Lewis antigens, and the MNS system is characterized by M, N, S, and s antigens. Understanding these distinctions is vital for proper blood grouping and transfusion compatibility.