Final answer:
E. Rhogam. Rhogam is the name of the preparation used to prevent sensitization of an Rh-negative mother to Rh-positive fetal red blood cells. It contains antibodies to the Rh antigen and is administered after the birth of each Rh-positive child.
Step-by-step explanation:
The name of the preparation used to prevent sensitization of an Rh-negative mother to Rh-positive fetal red blood cells and is administered after the birth of each Rh-positive child is Rhogam. Rhogam contains antibodies to the Rh antigen, which is found on the surface of Rh-positive red blood cells. When given to an Rh-negative mother within 72 hours after the birth of an Rh-positive child, Rhogam prevents the mother from developing Rh antibodies. These antibodies could potentially harm future Rh-positive pregnancies.