Which Blood Type Could Be Administered to Anyone Without the Risk

Question

Which blood type could be administered to anyone without the risk of a cross-reaction?
A) A
B) B
C) O
D) Rh+
E) AB

Accepted Answer

Blood type O is considered the universal donor because its red blood cells do not have either A or B antigens on their surfaces, which could react with the recipient's antibodies. Therefore, anyone can receive type O blood without a risk of cross-reaction. However, this does not apply to the Rh factor – a person with Rh- blood cannot receive Rh+ blood.