•The laboratory results of a postpartum woman are as follow: blood type, A; Rh status, positive (+); rubella titer, 1:4; Hct, 30%; How would the nurse best interpret this data?
•a. a blood transfusion should be given
•b. Rubella vaccine should be given
•c. A Kleinhauer-Betke test should be performed
•d. Rh immune globulin is necessary within 72 hours of birth