A delayed hemolytic transfusion reaction that occurred after a prophylactic partial exchange transfusion for sickle-cell disease in pregnancy is described. The clinical presentation and laboratory findings of delayed transfusion reactions are discussed, with special emphasis on problems associated in the sickle-cell disease patient. Suggestions on how to minimize the risk of transfusion reactions in the pregnant sickle-cell disease patient are given. © 1984 by The American college of Obstetricians and Gynecologists.
