What could have happened in this case if patient AW did not have an ABO group on record?

Without AW's historical blood group, her blood grouping error and the error with patient OP would not have been discovered.

  • Patient AW (group A) could have received group O RBC, which although not ABO identical, are ABO-compatible and safe to transfusion. However, if transfusion with plasma products such as FFP or platelets were ever needed, ABO-incompatible transfusion and hemolysis could result.
  • Patient OP (group O) could have received group A RBC, which are ABO-incompatible and could result in a life-threatening hemolytic transfusion reaction.