Question
Universal donor is
O Rh+
O Rh–
AB Rh+
AB Rh–
Solution
B.
O Rh–
With regard to transfusion of whole blood or packed red blood cells, individuals with O type negative blood are often called universal donors and those with type AB positive blood are called universal recipients. The person with blood group O– do not have any type of antigen present on the surface of the RBC so the recipient will not form any antibody against it.
