Not sure about just one answer - We had a labeled Rh negative RBC from the ARC that retyped as Rh positive. Upon investigation, it was found the Immucor anti-D reagent we use for retyping had anti-Crawford while the ARC automated process for D typing used an Ortho reagent which was from a different clone. Not very unlikely but certainly more than one answer.
We are currently using some BioTest antisera (Rh and Kell). We were using their Anti-S, but now only use it for screening after false negatives were found and confirmed by DNA. BioTest has not been able to resolve the discrepancies.
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Beth Eades reacted to Johnv in Does this blood bank "critical thinking" question makes sense to anyone?Not sure about just one answer - We had a labeled Rh negative RBC from the ARC that retyped as Rh positive. Upon investigation, it was found the Immucor anti-D reagent we use for retyping had anti-Crawford while the ARC automated process for D typing used an Ortho reagent which was from a different clone. Not very unlikely but certainly more than one answer.
