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?
The choice of treatment is best determined by the sensitivity of these genetic markers.
BRCA1 and BRCA2 provide protection of mature, functioning breast and ovarian cells.
Mutations in BRCA1 or BRCA2 identify a client’s risk for cancerous cell development in breast tissue.
The prognosis of breast cancer is most successful when these markers are inherited mutations.
The Correct Answer is C
Choice A rationale
While the sensitivity of genetic markers can influence the choice of treatment, it is not the primary pathophysiological process involved in BRCA1 and BRCA2 genetic testing. The main purpose of these tests is to identify genetic mutations that increase the risk of developing certain types of cancer.
Choice B rationale
BRCA1 and BRCA2 do play a role in protecting mature, functioning breast and ovarian cells. However, this is not the primary reason for conducting BRCA1 and BRCA2 genetic testing. The main purpose of these tests is to identify mutations that increase cancer risk.
Choice C rationale
This is the correct answer. Mutations in BRCA1 or BRCA2 can significantly increase a person’s risk for developing breast and ovarian cancer. Therefore, identifying these mutations through genetic testing can help determine a person’s cancer risk.
Choice D rationale
While inherited mutations in BRCA1 and BRCA2 can influence the prognosis of breast cancer, the primary purpose of BRCA1 and BRCA2 genetic testing is to identify mutations that increase cancer risk, not to determine prognosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
Anticipating and monitoring for hypothermia is the most crucial nursing intervention to include in the care plan for a patient who is 12 hours post-thyroidectomy. The thyroid gland plays a significant role in regulating the body’s metabolism, including temperature regulation. After a thyroidectomy, the body may struggle to regulate temperature, leading to hypothermia. The nurse should monitor the patient’s temperature regularly and provide warming measures as needed.
Choice B rationale
Preparing to administer radioactive iodine treatments is not the most crucial intervention at this time. Radioactive iodine is typically used as a treatment for hyperthyroidism or thyroid cancer, not as an immediate post-operative intervention.
Choice C rationale
Resuming antithyroid drug therapy is not the most crucial intervention at this time. Antithyroid drugs are used to treat hyperthyroidism, and their use would need to be evaluated based on the reason for the thyroidectomy and the patient’s post-operative thyroid hormone levels.
Choice D rationale
Maintaining a semi-Fowler position can be beneficial for comfort and respiratory function post-operatively, but it is not the most crucial intervention. The nurse should assist the patient to a comfortable position and encourage regular deep breathing and coughing exercises to prevent respiratory complications.
Correct Answer is ["1.8"]
Explanation
The client weighs 132 pounds. To convert pounds to kilograms, divide the weight in pounds by
2.2. So, the client’s weight in kilograms is: Step 1: 132 pounds ÷ 2.2 = 60 kg The prescription for dantrolene is 1.5 mg/kg. To find out how many milligrams the client should receive, multiply the client’s weight in kilograms by the dosage in mg/kg: Step 2: 60 kg × 1.5 mg/kg = 90 mg The vial is reconstituted to yield a concentration of 50 mg/mL. To find out how many mL the nurse should administer, divide the total dosage in milligrams by the concentration in mg/mL: Step 3: 90 mg ÷ 50 mg/mL = 1.8 mL So, the nurse should administer 1.8 mL of dantrolene.
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