Correct Answer: C

Rationale: The correct teaching for a client with COPD prescribed home oxygen therapy is to educate them on how to clean and replace the oxygen tubing. This is crucial to prevent infections and ensure the effectiveness of the oxygen delivery system. Option A is not necessary as oxygen therapy is usually prescribed as needed, not continuously at night. While smoking cessation and avoiding smoke exposure are important in COPD management, it is not directly related to home oxygen therapy. Increasing fluid intake is beneficial for some conditions but is not specifically related to home oxygen therapy for COPD.

Correct Answer: A

Rationale: The correct answer is A. Allowing the client to sit on the side of the bed before standing helps prevent dizziness and falls, especially during their first ambulation post-surgery. Choice B is incorrect because asking the client to take deep breaths when feeling dizzy may not address the underlying cause of the dizziness. Choice C is incorrect as it is unrelated to the task of assisting the client to ambulate for the first time. Choice D is incorrect because knowing how the client feels after sitting in the chair does not address the important step of assisting the client to stand up for the first time.

Correct Answer: A

Rationale: The correct answer is side-lying on the left with the head elevated 10 degrees. This position maximizes ventilation and promotes better perfusion to the unaffected lung. Placing the client in this position helps to optimize oxygenation and reduce pressure on the affected lung. Choices B, C, and D are incorrect because lying on the left side with the head elevated is essential to facilitate better lung expansion and gas exchange in the unaffected lung, while lying on the right side could further compromise the affected lung by increasing pressure on it.

Correct Answer: D

Rationale: The correct answer is D: Level of consciousness. When managing hepatic encephalopathy with lactulose, monitoring the client's level of consciousness is crucial as it is a key indicator of the therapeutic response to lactulose in reducing ammonia levels. Changes in consciousness can reflect the effectiveness of treatment and the progression of hepatic encephalopathy. Option A, percussion of the abdomen, is not directly related to evaluating the response to lactulose. Option B, blood glucose level, is important but not the priority in this context. Option C, serum electrolytes, while significant in liver disease, do not directly assess the impact of lactulose therapy on hepatic encephalopathy.

Correct Answer: B

Rationale: When a client on digoxin reports nausea, it can be a sign of digoxin toxicity. The priority action for the nurse is to assess the client's digoxin level immediately. This assessment will help determine if the nausea is related to digoxin toxicity, requiring a dosage adjustment. Administering an anti-nausea medication (Choice A) does not address the underlying issue of potential digoxin toxicity. Assessing the client's apical pulse (Choice C) is important in general digoxin monitoring but not the first action when nausea is reported. Instructing the client to reduce fluid intake (Choice D) is not the initial response to nausea in a client taking digoxin.