In a type II hypersensitivity reaction, when mismatched blood is administered causing an ABO incompatibility, the erythrocytes are destroyed by:
A)complement-mediated cell lysis.
B)phagocytosis by macrophages.
C)phagocytosis in the spleen.
D)natural killer cells.

Question

Quizplus · Accepted Answer

Erythrocytes are destroyed by complement-mediated lysis in individuals with autoimmune hemolytic anemia or as a result of an alloimmune reaction to ABO-mismatched transfused blood cells.

In a Type II Hypersensitivity Reaction, When Mismatched Blood Is