Correct Answer: A

Rationale: The correct answer is A. Using sugar-free gum can help alleviate the metallic taste often experienced during chemotherapy treatments. Choices B, C, and D are incorrect. Drinking fluids at mealtime may worsen early satiety, foods higher in fat can exacerbate nausea, and raw fruits and vegetables may be harder for the body to digest and may pose a risk of infection for individuals with compromised immune systems.

Correct Answer: A

Rationale: The correct answer is A: Hypokalemia increases the risk of dysrhythmias when taking digoxin, making potassium intake crucial. Digoxin toxicity is more likely in patients with low potassium levels, leading to an increased risk of dysrhythmias. Choices B, C, and D are incorrect because hypokalemia in combination with digoxin is primarily associated with dysrhythmias rather than oliguria, irritability, anxiety, or alteration of consciousness.

Correct Answer: A

Rationale: The correct answer is to assess the severity and location of the pain. This is crucial because understanding the nature of the pain will guide the nurse in developing an appropriate pain management plan. Choice B is incorrect because administering analgesics should come after assessing the pain to ensure the right medication is given. Choice C is incorrect because dismissing the pain as a normal part of aging without proper assessment could overlook underlying issues. Choice D is incorrect as increasing activity without understanding the cause of pain may exacerbate the client's condition.

Correct Answer: B

Rationale: Dry mucous membranes are a classic sign of dehydration, especially in elderly individuals. Dehydration can lead to decreased moisture in the mucous membranes, making them dry. Skin turgor, although commonly assessed for dehydration in younger individuals, may be less reliable in the elderly due to changes in skin elasticity. Elevated temperature is more indicative of an infection or other conditions. Increased pulse pressure is not typically associated with dehydration in the elderly.

Correct Answer: A

Rationale: Assessing the client's usual pattern of activity is crucial as it helps the nurse understand the client's current level of physical activity, any limitations, and areas needing improvement. This information is essential to create a safe and effective exercise plan tailored to the client's specific needs. Choice B, assisting the client in developing a healthy eating plan, is important but not the first step when the client's immediate goal is to start an exercise program. Encouraging the client to join a support group may be beneficial for motivation and emotional support but is not the priority at this stage. Providing a list of signs and symptoms to report to the provider is important for client education but is not the initial step when the client expresses a desire to begin an exercise program.