Review Question - QID 213840

During a 20-week prenatal checkup, an ultrasound concerning for hydrops fetalis is obtained from a G2P0 woman. The patient is worried about the finding, as she really wants a child after 2 previous miscarriages. The patient is otherwise healthy and has been consistent with her prenatal care. Her records show that she has no significant past medical history except for gestational diabetes. The obstetrician informs the patient that she should have received anti-D immune globulin during her first pregnancy years ago. If this current gestating fetus is able to be delivered, which findings for Rh antigen would be expected for baby and mother?