Plasmapheresis (plasma exchange therapy)

Plasmapheresis (plasma exchange therapy) is used in the treatment of

a) Autoimmune hemolytic anemia
b) Disseminated intravascular coagulation
c) Thrombotic thrombocytopenic purpura
d) Hemolytic uremic syndrome

Correct answer : c) Thrombotic thrombocytopenic purpura
(It can also be used for HUS, but is not as successful)