An antigen is a substance that can activate the immune system to produce antibod
ID: 3522731 • Letter: A
Question
An antigen is a substance that can activate the immune system to produce antibodies. In the blood, the reaction of antibodies and antigens can cause clumping - never a good thing. The ABO and Rh blood typing systems are based on certain antigen molecules on the plasma surfaces of Red Blood Cells. Type 0- blood has been identified as universal donor blood type because it has "zero" antigens to A, B or Rh on its red blood cells - so there is no danger of a recipient's anti-A, anti-B or anti-Rh antibodies clumping the donated "O" red blood cells during a transfusion. In contrast, a different blood type is called the universal recipient blood type. What blood type is called the universal recipient blood type, and why?
The universal recipient blood is AB+. Because it has the A, B and RH antigens on its cell membranes, it has no antibodies to A, B or Rh antigens its blood plasma. If it did, the blood would agglutinate itself, so to speak. Therefore, there is no danger of an AB+ recipient's blood clumping donated red blood cells which have A, B or Rh antigens.
The universal recipient blood is ABO. It does not contain any anti-A, anti-B, or anti-Rh antibodies in its plasma. Therefore, type AB- blood does not clump any donor’s red blood cells containing A, B, or Rh antigens.
The universal recipient blood is 0- that has been cross-matched for minor antigens.
none of the above
a.The universal recipient blood is AB+. Because it has the A, B and RH antigens on its cell membranes, it has no antibodies to A, B or Rh antigens its blood plasma. If it did, the blood would agglutinate itself, so to speak. Therefore, there is no danger of an AB+ recipient's blood clumping donated red blood cells which have A, B or Rh antigens.
b.The universal recipient blood is ABO. It does not contain any anti-A, anti-B, or anti-Rh antibodies in its plasma. Therefore, type AB- blood does not clump any donor’s red blood cells containing A, B, or Rh antigens.
c.The universal recipient blood is 0- that has been cross-matched for minor antigens.
d.none of the above
Explanation / Answer
A) AB+ blood is universal recipient.
Because AB+ have antigen for A, B, Rh factor but it does not contain any anti A, anti B or anti Rh on its RBC, so, during blood transfusion if donar contain antibody for A, B or Rh the blood of recipient does not clump.