The nurse is caring for a 39-year-old woman with a family history of breast cancer. She requested a breast tumor marking test and the results have come back positive. As a result, the patient is requesting a bilateral mastectomy. This surgery is an example of what type of oncologic surgery?
Correct Answer: C
Rationale: Prophylactic surgery refers to the preventive removal of tissues or organs at high risk for developing cancer, even when no cancer is currently present. In this case, the patient has a positive breast tumor marking test and a significant family history of breast cancer, which places her at increased risk for developing the disease. A bilateral mastectomy is performed to significantly reduce this risk by removing both breasts, thereby preventing the potential future occurrence of breast cancer.