Correct Answer: B

Rationale: The correct answer is B: 'Promoting bed rest to avoid injury.' In patients with multiple myeloma undergoing chemotherapy, encouraging bed rest can lead to muscle weakness and bone loss, increasing the risk of fractures. Promoting bed rest to avoid injury means advising the patient on safe movement and activities to prevent fractures. Encouraging weight-bearing exercises (choice C) would be more beneficial than bed rest as it helps in maintaining bone density and strength. Ensuring adequate hydration (choice D) is essential for overall health but does not directly address the risk of bone fractures associated with multiple myeloma and chemotherapy. Choice A, 'Encouraging bed rest,' is incorrect as it may worsen the risk of fractures rather than reduce it.

Correct Answer: A

Rationale: The correct answer is A: Strict hand hygiene. Neutropenic clients have a low level of neutrophils, which are important in fighting infections. Therefore, maintaining strict hand hygiene is crucial in preventing the introduction of pathogens that could lead to infections. Limiting visitor contact (choice B) is important but not as critical as preventing the introduction of pathogens through proper hand hygiene. Administering prophylactic antibiotics (choice C) and blood products (choice D) are treatment measures and do not address the preventive aspect that hand hygiene provides.

Correct Answer: A

Rationale: The correct answer is A: Decreased immune function. Aging leads to a decline in immune function, which increases susceptibility to infections during chemotherapy. This decline is due to changes in the immune system that occur with age. Choices B, C, and D are incorrect because while they may impact overall health in older clients, they do not directly increase susceptibility to infections during chemotherapy like decreased immune function does.

Correct Answer: C

Rationale: The correct answer is to schedule the client for a chest x-ray. A positive Mantoux test indicates exposure to TB, but it does not confirm active disease. A chest x-ray is necessary to assess the presence of active TB disease. Isolating the client in a private room (Choice A) is not necessary based solely on a positive Mantoux test result. Administering isoniazid (INH) (Choice B) or beginning a 9-month course of medication therapy (Choice D) is premature without confirming active TB through a chest x-ray.

Correct Answer: D

Rationale: The correct answer is to dispose of the antineoplastic wastes in the hazardous waste receptacle. Antineoplastic agents are hazardous materials, and proper disposal is crucial to prevent harm to individuals and the environment. Option A is incorrect because adjusting the dose based on the patient's present symptoms may not be safe without proper authorization. Option B is incorrect as hand hygiene should be performed both before and after administering medications. Option C is incorrect as gloves and a lab coat should be worn primarily during handling and administration, not just during preparation.