We had an 65 years old male pacient with A2B Rh(D)+ blood type.Never transfused before,antibodies screening negative.We asked our blood bank transfusion guidelines for this pacient in case of need(he was hospitalised for heart surgery).We got the answer that we can give him AB Rh(D)+ regular red cells (the chances he would develop A1 antibodies is 20 percents as far as I know) and only later,if he develops that antibodies we should switch him on B or O.What do you think about this?Is this correct in your transfusion policy?
(Lucky pacient didn't need transfusion of red cells after all,only FFP)
Just to satisfy my curiosity...and learn,of course.