Transfusion

Question 1

leukoreduced

Answer 1

decreases the amount of contaminating leukocytes in the erythrocyte product and reduces the risk of febrile nonhemolytic transfusion reactions, cytomegalovirus transmission, and class I HLA alloimmunization and subsequent platelet transfusion refractoriness

Question 2

irradiated

Answer 2

reduced risk of transfusion-associated graft vs host disease in severely immunocompromised

Question 3

washed

Answer 3

reduced risk of severe allergic reaction in pts with a history of severe/recurrent allergic reactions, IgA deficiency (when IgA-deficient donors are unavailable), or complement-dependent autoimmune hemolytic anemia. Also reduces the amount of potassium transfused for use in patients who are at risk for hyperkalemia

Question 4

HLA-matched

Answer 4

for platelet transfusion refractoriness (must also be irradiated)