juxtaposition (plural juxtapositions) 1  The nearness of objects with little or no delimiter. 2  The extra emphasis given to a comparison when the contrasted objects are close together.
Hemolytic disease of the newborn (HDN), also known as alloimmune HDN or erythroblastosis fetalis, is a potentially fatal alloimmune condition where fetal red blood cells are destroyed by transplacentally acquired maternal antibodies. RhD is the most common offending paternal antigen.
slide 3 of 4. Direct Coombs Testing of Newborns Direct Coombs testing is done on newborn babies when there is a possibility of incompatibility with the mother's blood which results in hemolytic disease of the newborn. This most commonly occurs when the mother has Rh negative blood and the baby has Rh positive blood.