issb general knowledge MCQ #75

Which blood group is called the universal donor for red cell transfusion?

issb general knowledge MCQ #75

  1. Question 1

    Q1. Which blood group is called the universal donor for red cell transfusion?

    • A) A positive
    • B) B negative
    • C) O negative
    • D) AB positive

    Answer: O negative

    Explanation: O negative red cells lack A, B, and Rh antigens, so they can be given to most patients in emergencies. AB positive is the universal recipient, not donor.