Correct Answer: A

Rationale: A GFR of 14 mL/min indicates significant kidney damage and a severe decrease in kidney function. This level of GFR typically indicates the need for hemodialysis to help the kidneys perform their function adequately. BUN, serum magnesium, and serum phosphorus levels are important in assessing kidney function and managing chronic kidney disease but do not specifically indicate the need for hemodialysis. Therefore, choices B, C, and D are incorrect.

Correct Answer: A

Rationale: Placing a daily calendar in the kitchen is essential to help clients with Alzheimer's stay oriented to time and maintain cognitive function. It supports their ability to recall the day, date, and upcoming events, promoting a sense of control over their environment. Choices B, C, and D do not directly target cognitive function support in clients with Alzheimer's disease. While replacing buttoned clothing with zippered items may aid in dressing independently, changing the flooring or introducing variation in the daily routine does not specifically address cognitive function support.

Correct Answer: A

Rationale: The correct answer is A: Drinking grapefruit juice. Grapefruit juice can increase the risk of statin toxicity by interfering with the enzyme that metabolizes statin medications, leading to higher drug levels in the body. This interaction can potentially cause adverse effects. Therefore, patients should be advised to avoid consuming grapefruit juice while taking statins. Choices B, C, and D are incorrect. Consuming high-protein meals, exercising regularly, and taking the medication in the morning are not contraindicated while on statin therapy. In fact, following a healthy diet, engaging in physical activity, and taking the medication at a consistent time each day can be beneficial for patients prescribed statins.

Correct Answer: C

Rationale: Instructing a patient about incentive spirometry falls under the implementation phase of the nursing process. During this phase, nursing interventions are put into action. Assessment (choice A) involves collecting data about the patient's condition, planning (choice B) involves setting goals and creating a care plan, and evaluation (choice D) involves assessing the outcomes of nursing interventions. Therefore, the correct answer is C, as it reflects the active teaching and intervention part of the process.

Correct Answer: B

Rationale: The correct recommendation to reduce the risk of coronary artery disease is to exercise for at least 150 minutes per week. Regular exercise is crucial in maintaining cardiovascular health and reducing the chances of developing heart disease. Increasing intake of saturated fats (Choice A) is counterproductive as it can raise cholesterol levels and contribute to arterial plaque formation. Taking iron supplements daily (Choice C) is not directly related to reducing the risk of coronary artery disease. Limiting fruits and vegetables in the diet (Choice D) is also not advisable, as they are essential components of a heart-healthy diet due to their high fiber and nutrient content.