Fetal anemia as a response to prophylactic platelet transfusion in the management of alloimmune thrombocytopenia

The antenatal management of alloimmune thrombocytopenia (ATP) frequently requires fetal blood sampling and prophylactic platelet transfusion. A recent case of ATP complicated by associated red blood cell alloimmunization demonstrated severe hemolysis apparently as a result of ABO incompatibility from transfused platelets.