Correct Answer: B

Rationale: Chemotherapy targets rapidly dividing cells, which include both cancerous and healthy cells, such as those in the bone marrow, hair follicles, and the lining of the digestive tract. Since the bone marrow produces immune cells (white blood cells), chemotherapy can weaken the immune system by reducing the body's ability to produce these cells, making patients more susceptible to infections. This is why close monitoring and supportive measures to protect immune function are important during chemotherapy treatment.

Correct Answer: D

Rationale: A pelvic ultrasound requires the client to have a full bladder because the bladder acts as a window through which pelvic organs, such as the uterus and ovaries, can be visualized more clearly. The full bladder pushes the intestines out of the way and provides a better acoustic pathway for the ultrasound waves. Without this, the pelvic organs might be obscured, and the images would be less accurate.

Correct Answer: D

Rationale: While chemotherapy does affect normal, healthy cells-particularly those that divide rapidly-it is not "more likely" to kill normal cells compared to cancer cells. Chemotherapy targets rapidly dividing cells, which includes both cancer cells and some normal cells (like those in hair follicles, the gastrointestinal tract, and bone marrow). However, its primary goal is to kill cancer cells, and its effects on normal cells are a side effect, not the main function. Therefore, the statement that chemotherapy is "more likely" to kill normal cells is inaccurate and indicates a need for further teaching.

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.

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.