Question

Blood of AB group cannot be given to a B group patient because

• A. the patient has anti-A antibodies.
• B. the patient has anti-B antibodies.
• C. the patient lacks anti-A antibodies.
• D. the patient has both anti-A and anti-B antibodies.

Answer 1

The correct option is A

the patient has anti-A antibodies.

Blood of AB group has A and B antigens. A person with B group produces anti-A antibodies which will act against the A antigens of AB blood group and cause clumping and clotting of blood, which can be fatal for the recipient.