Correct Answer: A

Rationale: The correct answer is A. In chronic kidney disease, limiting protein intake is crucial to prevent overworking the kidneys. Excessive protein consumption can lead to the accumulation of metabolic waste products that the kidneys struggle to process, worsening kidney function. Therefore, by recognizing the need to restrict protein intake, the client demonstrates an understanding of the dietary management required for their condition. Choices B, C, and D are incorrect. Increasing intake of potassium-rich foods (Choice B) is not recommended in chronic kidney disease as it can lead to hyperkalemia. Similarly, increasing intake of phosphorus-rich foods (Choice C) is not advised because impaired kidneys struggle to excrete phosphorus, leading to elevated levels in the blood. Lastly, increasing intake of calcium-rich foods (Choice D) may not be necessary unless there is a specific deficiency or requirement, as calcium balance is often disrupted in chronic kidney disease.

Correct Answer: A

Rationale: The correct answer is A: 'I should increase my intake of foods high in iron.' Iron-deficiency anemia is managed by increasing the consumption of iron-rich foods to improve iron levels in the body. Foods high in iron include red meat, poultry, fish, beans, lentils, and iron-fortified cereals. Choices B, C, and D are incorrect because decreasing intake of iron-rich foods or increasing intake of calcium-rich foods would not address the deficiency in iron levels that characterizes iron-deficiency anemia.

Correct Answer: A

Rationale: When assisting a client with bilateral casts on her hands with feeding, the nurse should sit at the bedside. This action is crucial to provide the client with the nurse's full attention during the feeding process. Sitting at the bedside helps avoid appearing rushed and ensures a safe and comfortable environment for the client. Choices B, C, and D are incorrect because while they may be relevant in other situations, the priority when assisting a client with bilateral casts on her hands is to ensure proper attention and a comfortable setting during feeding.

Correct Answer: A

Rationale: The correct answer is A: 'I should avoid foods that contain lactose.' Lactose intolerance results from the inability to digest lactose, a sugar found in dairy products. Avoiding foods that contain lactose is essential in managing symptoms like bloating, diarrhea, and abdominal pain. Choice B is incorrect because increasing dairy intake would worsen symptoms. Choice C is incorrect because gluten is unrelated to lactose intolerance. Choice D is incorrect because high-fiber foods are beneficial for other conditions but do not specifically address lactose intolerance.

Correct Answer: C

Rationale: In acute renal failure, the kidneys are unable to excrete potassium efficiently, which can lead to hyperkalemia. As a result, an increased potassium level is a common finding in clients with acute renal failure. Hyperkalemia can have serious cardiac effects, making it essential for healthcare providers to monitor and manage potassium levels closely in clients with renal impairment. Choices A, B, and D are incorrect because in acute renal failure, blood urea nitrogen (BUN) and creatinine levels typically rise due to decreased renal function. Calcium levels are more likely to be decreased in acute renal failure due to impaired activation of vitamin D and subsequent decreased calcium absorption.