Which blood group is called the universal recipient?

Answer and explanation

Correct answer: C. AB positive

  1. Step 1: Blood transfusion compatibility depends on the presence of erythrocyte surface antigens (A, B, and Rh factor) and circulating plasma antibodies.
  2. Step 2: Individuals with blood group AB positive have red blood cells displaying A, B, and Rh(D) antigens, and produce neither anti-A, anti-B, nor anti-Rh antibodies, enabling safe receipt of erythrocytes from any ABO/Rh blood type.
Answer
AB positive.
Why not the others: 'O negative' lacks A, B, and Rh antigens, making it the universal donor rather than recipient; 'B positive' contains anti-A antibodies which would hemolyze type A or AB donor red cells; 'A negative' contains anti-B antibodies and lacks the Rh antigen.

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