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.

Correct Answer: C

Rationale: The correct answer is C: Chloride. Chloride levels are typically low in cases of hyponatremia, as it often accompanies sodium loss. Magnesium (choice A) is not directly related to hyponatremia. Calcium (choice B) and Potassium (choice D) levels are usually not significantly affected by hyponatremia, making them less likely to be below the expected reference range in this scenario.

Correct Answer: D

Rationale: The correct answer is to check the client's oxygen saturation level first. This action is crucial in assessing the severity of dyspnea and determining the necessity for oxygen therapy. Administering oxygen therapy without knowing the current oxygen saturation level can be inappropriate and potentially harmful. Encouraging deep breathing exercises and raising the head of the bed are important interventions, but assessing the oxygen saturation level takes precedence in managing dyspnea in a client with COPD.

Correct Answer: C

Rationale: Assisting the client to stand by the side of the bed to void is the most appropriate action. This position can help stimulate voiding due to gravity and normal positioning. Having the client drink water (Choice A) may help, but assisting him to stand is more effective. Crede maneuver (Choice B) is not recommended as it can increase the risk of bladder trauma. Waiting for 2 hours (Choice D) without taking any action is not proactive in addressing the client's inability to void.

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.