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Which blood group is known as the universal recipient?
A. O negative
B. AB positive
C. A positive
D. B negative
Correct Answer Is Option = AB positive
Notes / Explanation
The blood group that is known as the universal recipient is AB positive, and this is an important fact in the study of blood and of the transfusion of blood from one person to another. Human blood is classified into different groups according to the presence or absence of certain substances on the surface of the red blood cells and in the blood, and the main system of classification divides blood into a number of groups, together with a further division according to another factor that may be present or absent, indicated by the words positive and negative. The blood group of a person is important particularly in situations where blood needs to be given from one person to another, as in the case of serious injury, surgery or certain illnesses, because it is essential that the blood given to a patient is compatible with the patient's own blood, since giving incompatible blood can cause a dangerous reaction. Among the different blood groups, the group AB positive has the special property that a person with this blood group can, in general, safely receive blood from people of any of the blood groups, because the particular combination of factors in this blood group means that it does not react against the substances present in the other groups. For this reason, a person with AB positive blood is described as a universal recipient, meaning one who can receive blood from anyone. This may be contrasted with another special blood group, which is described as the universal donor, meaning the group whose blood can, in general, be given safely to people of any group. The existence of universal recipients and universal donors is very useful in medicine, particularly in emergencies, because it provides flexibility in the matching of blood, although in practice careful matching and testing are always carried out to ensure safety. The study of blood groups and their compatibility is an important part of the study of the human body and of medicine. For PPSC and other competitive examinations, the key points to remember are that the blood group known as the universal recipient is AB positive, that a person with this group can generally receive blood from any of the blood groups, that this is because of the particular combination of factors in this blood group, and that it may be contrasted with the universal donor, whose blood can generally be given to anyone.
