The nurse is preparing a client with breast cancer for BRCA1 and BRCA2 genetic testing. Which pathophysiological process should the nurse use to support client teaching?
1) A The choice of treatment is best determined by the sensitivity of these genetic markers.
2) B Mutations in BRCAl or BRCA2 identify a client's risk for cancerous cell development in breast tissue.
3) C BRCAl and BRCA2 provide protection of mature, functioning breast and ovarian cells.
4) D The prognosis of breast cancer is most success