Nokea
A nurse working with oncology clients knows that an age-related decrease in which function increases the older client's susceptibility to infection during chemotherapy?
- A. Immune function.
- B. Kidney function.
- C. Liver function.
- D. Cardiac function.
Correct Answer: A
Rationale: As people age, the immune system becomes less efficient, a phenomenon known as immunosenescence. This decline in immune function includes reduced production of immune cells (such as T cells and B cells) and diminished responses to infections. During chemotherapy, which further suppresses the immune system, older clients are at a significantly higher risk of developing infections due to this age-related decrease in immune function. This is especially concerning because chemotherapy targets rapidly dividing cells, which include immune cells, making it even harder for the body to fight off infections.
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An oncology nurse educator is providing health education to a patient who has been diagnosed with skin cancer. The patient¢â‚¬â„¢s wife has asked about the differences between normal cells and cancer cells. What characteristic of a cancer cell should the educator cite?
- A. Malignant cells contain more fibronectin than normal body cells.
- B. Malignant cells contain proteins called tumor-specific antigens.
- C. Chromosomes contained in cancer cells are more durable and stable than those of normal cells.
- D. The nuclei of cancer cells are unusually large, but regularly shaped.
Correct Answer: B
Rationale: Malignant (cancer) cells often express tumor-specific antigens (TSAs), which are proteins or markers on the surface of cancer cells that are not found on normal cells. These antigens are produced due to genetic mutations in cancer cells and can sometimes be used to help the immune system recognize and attack cancerous cells. Tumor-specific antigens play a key role in cancer diagnosis, monitoring, and targeted therapies.
The clinic nurse is caring for a patient whose grandmother and sister have both had breast cancer. She requested a screening test to determine her risk of developing breast cancer and it has come back positive. The patient asks you what she can do to help prevent breast cancer from occurring. What would be your best response?
- A. Research has shown that eating a healthy diet can provide all the protection you need against breast cancer.
- B. Research has shown that taking the drug tamoxifen can reduce your chance of breast cancer.
- C. Research has shown that exercising at least 30 minutes every day can reduce your chance of breast cancer.
- D. Research has shown that there is little you can do to reduce your risk of breast cancer if you have a genetic predisposition.
Correct Answer: B
Rationale: Tamoxifen is a selective estrogen receptor modulator (SERM) that has been shown to significantly reduce the risk of developing breast cancer in women who are at high risk, particularly those with a family history of the disease or a positive genetic test for BRCA mutations. Large-scale studies have demonstrated that tamoxifen can reduce the incidence of breast cancer by up to 50% in high-risk women. It works by blocking estrogen receptors in breast tissue, which helps prevent the development of estrogen receptor-positive breast cancers.
The nurse is instructing the 35 year old client to perform a testicular self-examination. The nurse tells the client:
- A. To examine the testicles while lying down
- B. That the best time for the examination is after a shower
- C. To gently feel the testicle with one finger to feel for a growth
- D. That testicular self-examination should be done at least every 6 months
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
A client has been prescribed epoetin alfa for anemia related to chemotherapy. What lab value should the nurse monitor to determine the effectiveness of this medication?
- A. Hemoglobin level.
- B. Hematocrit level.
- C. White blood cell count.
- D. Platelet count.
Correct Answer: A
Rationale: Epoetin alfa is a medication used to treat anemia, particularly anemia related to chemotherapy or chronic kidney disease. It stimulates the bone marrow to produce more red blood cells, which increases the hemoglobin level. Monitoring hemoglobin is the best way to assess the effectiveness of epoetin alfa, as an increase in hemoglobin indicates that the body is producing more red blood cells and the anemia is improving.
A nurse is planning the care of a patient who has been admitted to the medical unit with a diagnosis of multiple myeloma. In the patients care plan, the nurse has identified a diagnosis of Risk for Injury. What pathophysiologic effect of multiple myeloma most contributes to this risk?
- A. Labyrinthitis
- B. Left ventricular hypertrophy
- C. Decreased bone density
- D. Hypercoagulation
Correct Answer: C
Rationale: In multiple myeloma, the malignant proliferation of plasma cells within the bone marrow leads to the secretion of osteoclast-activating factors, which increase the breakdown of bone tissue (osteolysis). This results in decreased bone density, osteoporosis, and osteolytic lesions, making bones fragile and more prone to pathologic fractures. Patients with multiple myeloma are at high risk for fractures even with minimal trauma due to the weakened bone structure, which is why Risk for Injury is a key diagnosis.