A two-syringe method for exchange blood transfusion.

Exchange blood transfusion in cases of erythroblastosis foetalis is now an accepted form of treatment but a somewhat tedious one, especially if it has to be carried out in the early hours of the morning. It was, therefore, decided to try and see whether the time could be cut down by using two syringes, whereby blood was withdrawn from the infant into one while the other was being charged with blood from the bottle. The infant thus receives blood for every complete excursion of the piston intead of once in every two.