Correct Answer: D

Rationale: An absolute neutrophil count of 500/mm3 indicates severe neutropenia, putting the client at high risk for infection. Neutrophils are crucial in fighting off infections; a low count increases susceptibility to infections. Platelet count, white blood cell count, and hemoglobin levels are within normal ranges and do not require immediate intervention in this scenario.

Correct Answer: A

Rationale: The correct answer is A: 'The patient faces a significant risk of malignancy.' Indolent neoplasms are characterized by their slow growth and relatively low malignancy potential; however, they do have the capability to progress to malignancy over time. Choices B, C, and D are incorrect because they make assumptions about specific types of leukemia and hemophilia, which are not necessarily related to the presence of an indolent neoplasm.

Correct Answer: A

Rationale: In multiple myeloma, the nurse would expect to note an increased calcium level in the laboratory results. This elevation is due to bone destruction caused by the disease, releasing calcium into the bloodstream. Increased white blood cells (Choice B) are not typically associated with multiple myeloma. Additionally, a decreased blood urea nitrogen level (Choice C) is not a common finding in this disorder. Multiple myeloma is characterized by the proliferation of abnormal plasma cells in the bone marrow, leading to an increased number of plasma cells, not a decreased number (Choice D). Therefore, the correct answer is an increased calcium level.

Correct Answer: A

Rationale: The correct answer is monitoring for infection. In patients with acute leukemia, the most common cause of death is usually infection or bleeding. By closely monitoring for signs of infection, such as fever, altered mental status, or elevated white blood cell count, healthcare providers can intervene promptly. Monitoring nutritional status (choice B) is important but does not directly address the most common cause of death among leukemia patients. Monitoring electrolyte levels (choice C) and liver function (choice D) are also important assessments in cancer patients; however, they are not the most direct assessment to address the leading cause of death in patients with leukemia.

Correct Answer: A

Rationale: The correct answer is A: Vital signs. Monitoring vital signs is crucial during the infusion of monoclonal antibody therapy as there is a risk of infusion reactions such as fevers, chills, hypotension, and tachycardia. Assessing vital signs allows for early detection of any adverse reactions, enabling prompt intervention. Skin reactions (choice B), respiratory status (choice C), and renal function (choice D) are important assessments in general patient care but are not the priority during the infusion of monoclonal antibody therapy.