Question

A person with blood group AB is considered as a universal recipient because he/she has ____

• A. Both A and B antigens on RBC but no antibodies in the plasma.
• B. Both A and B antibodies in the plasma.
• C. No antigen on RBC and no antibody in the plasma.
• D. Both A and B antigens in the plasma but no antibodies.

Answer 1

The correct option is A

Both A and B antigens on RBC but no antibodies in the plasma.

Blood groups are determined based on the presence of antigens on the surface of RBCs, and antibodies in the plasma. Type O individuals are without A and B antigens on their RBCs but have antibodies for both these antigens in their plasma. A person with blood group AB has both the antigens (antigen A and antigen B) on their RBCs and no antibodies in their plasma. Hence, individuals with blood group AB can receive blood of A, B or O group. Due to the absence of any antibodies, there will not be any reaction with the donor's blood.