51. An elective caesarean section is being performed on a 30-year-old Rhesus D negative pregnant woman at 37 weeks of gestation for placenta praevia (major). Arrangements were made and she is receiving intraoperative cell salvage (ICS)transfusion. What would be the plan with regard to Rhesus D prophylaxis in this woman assuming the baby's blood group is unknown? A. Administer 500 IU anti-D Ig and then take a sample of materna blood 30-45 min after intraoperative cell salvage (ICS) infusion B. Administer 750 IU anti-D Ig and then take a sample of maternal blood 30-45 min after ICS C. Administer 1500 IU anti -D Ig and then take a sample of materna blood 30-45 min after ICS infusion D. Administer 2000 IU anti-D Ig and then take a sample of maternal blood 30-45 min after ICS infusion 52.What is the recommended regimen for anti-D prophylaxis for a 26-year-old Rhesus D negative woman who is not sensitized? A. 500 IU Ig at 28 weeks of gestation B. 500 IU lg anti-D at 34 weeks of gestation C. 1000 IU lg anti-D at 28 weeks gestation D. 1500 IU Ig anti-D at 28 weeks gestation 53. A 20-year-old RhD negative woman presents with bleeding at 11 weeks of gestation. When will you consider administering anti-D lg prophylaxis to this woman? A. She goes on to have a complete miscarriage B. The bleeding is heavy but is stopping C. The bleeding is repetitive or associated with pain D. The bleeding is small and painless

51. **Correct Answer: B. Administer 750 IU anti-D Ig and then take a sample of maternal blood 30-45 min after ICS**<br /><br />Explanation: In the scenario of an elective caesarean section for placenta praevia with intraoperative cell salvage (ICS) transfusion, the plan for Rhesus D prophylaxis involves administering 750 IU of anti-D immunoglobulin (anti-D Ig) to the mother. This is done to prevent sensitization in the event that the baby is Rhesus D positive. A sample of maternal blood is taken 30-45 minutes after the ICS transfusion to ensure that the anti-D Ig is effective and to check for any signs of sensitization.<br /><br />52. **Correct Answer: B. 500 IU Ig anti-D at 34 weeks of gestation**<br /><br />Explanation: The recommended regimen for anti-D prophylaxis for a Rhesus D negative woman who is not sensitized is to administer 500 IU of anti-D Ig at 34 weeks of gestation. This timing is chosen to ensure that the anti-D Ig provides adequate protection during the remainder of the pregnancy and the intrapartum period.<br /><br />53. **Correct Answer: C. The bleeding is repetitive or associated with pain**<br /><br />Explanation: Anti-D Ig prophylaxis is considered in a Rhesus D negative woman presenting with bleeding at 11 weeks of gestation if the bleeding is repetitive or associated with pain. This indicates that there may be an underlying issue that could lead to sensitization, and thus, prophylaxis is warranted to prevent potential complications.