Correct Answer: D

Rationale: Imbalanced nutrition is the most critical nursing diagnosis to address in this scenario. The patient's significant weight loss and neglect of basic needs, such as eating and personal hygiene, indicate a severe imbalance in nutrition. Addressing this issue is crucial to prevent further health deterioration. Self-care deficit, disturbed sleep pattern, and disturbed thought processes are important but secondary concerns compared to the immediate risk posed by imbalanced nutrition. While self-care deficit and disturbed sleep pattern are valid concerns, the patient's weight loss and neglect of basic needs take precedence. Disturbed thought processes are also significant but addressing the imbalanced nutrition is more urgent in this context.

Correct Answer: C

Rationale: The correct answer is C, complaints of shortness of breath on exertion. This symptom is indicative of heart failure, a common cardiac complication of arterial hypertension. Shortness of breath on exertion is often due to the heart's inability to pump effectively, leading to fluid buildup in the lungs. Choices A, B, and D are incorrect because complaints of an occipital headache, a palpable dorsal pedis pulse bilaterally, and a blood pressure of 160/90 do not specifically indicate a cardiac complication in a client with arterial hypertension.

Correct Answer: A

Rationale: The correct first action for the nurse to take is turning the client from side to side. This helps to facilitate drainage in peritoneal dialysis. Turning the client can aid in redistributing the dialysate and promoting better drainage. Increasing the dwell time of the dialysis (choice B) may not address the immediate issue of inadequate drainage. Repositioning the client (choice C) might not be as effective as turning the client from side to side. Milking the catheter (choice D) is not recommended as it can lead to complications. In this situation, the priority is to facilitate drainage to address the distended abdomen.

Correct Answer: B

Rationale: Choice B is the correct answer because it addresses the client's concern by explaining that the shot will help relieve the pain in his feet, which is a symptom of peripheral neuritis. This response shows empathy and provides the client with a clear benefit of receiving the medication. Choices A, C, and D do not directly address the client's immediate concern about the injection and its purpose, making them less suitable responses. Choice A focuses on the client's behavior rather than the therapeutic effect of the injection. Choice C shifts the responsibility to the client to administer the shot, which may not be appropriate in this situation. Choice D mentions feeling calmer and less jittery, which is not directly related to the client's current complaint of pain in the feet.

Correct Answer: C

Rationale: The correct action for the nurse to take first is to assess the client's oxygen saturation level. In a client with COPD and abnormal respiratory and heart rates, determining the oxygen saturation helps evaluate the adequacy of oxygen exchange and the severity of respiratory distress. Administering a bronchodilator (choice A) can be appropriate but assessing oxygen saturation takes priority. Encouraging deep breathing and coughing (choice B) may not address the immediate need for oxygenation assessment. Obtaining an arterial blood gas (choice D) is important but typically follows the initial assessment of oxygen saturation.