I work at a blood center that collects thousands of donations a month. We have our fair share of antibody positive donors who are regulars. Whenever we identify a positive antibody unit, we work hard to identify the antibody. If the antibody can not be identified, we discard the whole unit. We discard all plasma products from antibody positive donors.
We service multiple hospitals, some small and some very large ones. With that being said, only ONE of those hospitals will take these positive units for transfusion and it is frustrating. Thanks AMcCord for shedding light on your usage of such units. It was so very refreshing.