Question: On the maternity ward, the nurse takes a careful admission and health history with what understanding of Rh factors? Need Online Help? Select all that apply. Rh antibodies can develop during pregnancy. Rh antibodies can develop during a blood transfusion. Rh antibodies can develop as a normal process of aging. If Rh antibodies have developed, a life-threatening reaction can occur. Rh antibodies develop in persons with Rh+ blood.