In transfusion, blood must be compatible not only in blood type but also in
- ARh factor
- Bthe number of white cells
- Cthe number of red cells
- Drace of donor and recipient
- ENone of the above/More than one of the above
Show answer and explanation
Correct answer: (a) Rh factor
Explanation
Safe transfusion needs matching of both the ABO blood type and the Rh factor (Rh antigen on RBCs).
An Rh-negative recipient must receive only Rh-negative blood to avoid antibody formation and agglutination.
White cell and red cell counts or race of the donor are irrelevant to transfusion compatibility.