issb general knowledge MCQ #43

Blood group known as universal donor (RBC transfusion context)?

issb general knowledge MCQ #43

  1. Question 1

    Q1. Blood group known as universal donor (RBC transfusion context)?

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

    Answer: O negative

    Explanation: O negative red cells lack A and B antigens, so they are used in emergencies. AB positive is often called universal recipient.