Correct Answer: A

Rationale: Monitoring the white blood cell count is crucial when a patient is undergoing chemotherapy for breast cancer. Chemotherapy can lead to neutropenia, a condition of low white blood cell count, which significantly increases the risk of infections. Monitoring white blood cell count helps healthcare providers intervene promptly to prevent severe infections. Hemoglobin level, while important in assessing oxygen-carrying capacity, is not the priority in this scenario. Serum creatinine and blood glucose levels are not directly impacted by chemotherapy for breast cancer.

Correct Answer: C

Rationale: The nurse should inform the patient that using oval corn pads can increase pressure on the toes and impede circulation, which may exacerbate foot problems in patients with diabetes. It is important to avoid practices that restrict blood flow to the feet, as poor circulation can lead to serious complications. Soaking the feet and using a pumice stone can be beneficial for corns, but in this case, the current self-treatment with corn pads is not recommended. Tighter shoes would further increase pressure on the corns and should be avoided. Therefore, the nurse should emphasize the importance of proper foot care and recommend alternative treatments to promote foot health and prevent complications.

Correct Answer: A

Rationale: The correct answer is A. Shifting weight to the unaffected leg when descending stairs is crucial for maintaining balance and safety. This technique helps prevent falls and distributes weight appropriately. Choices B, C, and D are incorrect because using crutches to support the weight on the injured leg, leading with the injured leg when ascending stairs, and keeping crutches under the arms are all potentially unsafe practices that could lead to further injury or accidents.

Correct Answer: A

Rationale: Encouraging the client to express their thoughts allows them to explore their own feelings and concerns about death. This approach empowers the client to reflect on their beliefs and values without the influence of the nurse's personal beliefs (choice B), which should remain separate in a professional setting. Redirecting the client to a chaplain or spiritual advisor (choice C) may be appropriate if the client seeks specific spiritual guidance. Providing a brief overview of common religious beliefs (choice D) may not address the client's individual questions and concerns.

Correct Answer: C

Rationale: During a Romberg's test, the nurse assesses the client's balance. Having the client stand with arms at her sides and feet together is the correct technique. This position helps the nurse observe for swaying or loss of balance, indicating alterations in balance. Choices A and B are incorrect as they are not part of Romberg's test and do not assess balance. Choice D is also incorrect as direct percussion over the kidneys is not associated with a Romberg's test.