Correct Answer: D

Rationale: In managing hyperkalemia, it is essential to administer insulin and glucose to shift potassium into the cells, restrict potassium intake to prevent further elevation of serum levels, and monitor the ECG for signs of potassium-induced cardiac effects. Therefore, the correct answer is D, as all of the provided actions are important in the management of hyperkalemia. Choice A alone is not sufficient as it only addresses shifting potassium intracellularly without preventing further elevation. Choice B alone is not enough as it does not address the immediate need to lower serum potassium levels. Choice C alone is insufficient as it only monitors for cardiac effects without addressing potassium levels or shifting mechanisms.

Correct Answer: A

Rationale: The correct answer is A. Common complications of diabetes include retinopathy (damage to the retina) and nephropathy (kidney damage). These complications can be managed effectively with regular screening to detect any signs early on. Choice B is incorrect as neuropathy and cardiovascular disease are other complications of diabetes but are managed through various treatments and lifestyle modifications, not just medication. Choice C is incorrect as although foot ulcers and hypertension are associated with diabetes, the management involves proper foot care practices and blood pressure control, respectively. Choice D is incorrect as hypertension and liver disease are not the typical complications of diabetes, and insulin therapy is not the primary management for these conditions.

Correct Answer: C

Rationale: In this situation, the nurse's priority is to determine if the client is experiencing psychotic thinking as it addresses the immediate safety concern. Psychotic thinking may pose a risk to the client's safety or the safety of others. Referring the client to a mental health counselor (choice A) may be appropriate but not the priority when safety is a concern. Encouraging the client to express their feelings (choice B) and asking about their social support system (choice D) are essential aspects of care but are secondary to addressing immediate safety issues.

Correct Answer: C

Rationale: When caring for a client diagnosed with delirium, the most important condition for the nurse to investigate is prescription drug intoxication. Delirium in older adults is commonly caused by medication side effects or interactions. Investigating prescription drug intoxication is crucial as it can be a reversible cause of delirium. While cancer, impaired hearing, and heart failure are important considerations in overall care, prescription drug intoxication takes precedence in cases of delirium.

Correct Answer: D

Rationale: The key considerations for managing a patient with COPD include oxygen therapy, which is essential to maintain adequate oxygen saturation levels. While bronchodilators are commonly used to manage COPD symptoms, they are not the primary consideration. Smoking cessation is crucial in preventing further damage but is not a direct management consideration. Pulmonary rehabilitation is beneficial for improving exercise capacity and quality of life but is not as crucial as ensuring adequate oxygen therapy.