Correct Answer: C

Rationale: The correct answer is C, 'Serum creatinine 3.5 mg/dL.' An elevated serum creatinine level indicates worsening kidney function and impaired renal clearance, which should be reported to the provider promptly. Choice A, 'Blood urea nitrogen (BUN) 15 mg/dL,' is within the normal range (7-20 mg/dL) and does not indicate acute kidney injury. Choice B, 'Urine output of 45 mL/hr,' is a low urine output but does not directly reflect kidney function decline. Choice D, 'Calcium 9 mg/dL,' is within the normal calcium range (8.5-10.5 mg/dL) and is not specifically indicative of acute kidney injury.

Correct Answer: D

Rationale: Cheddar cheese is high in phosphorus, which should be avoided by clients with chronic kidney disease. Fresh fruit is generally a healthy choice unless the client needs to limit potassium intake. Grilled chicken is a good protein source for clients with chronic kidney disease. White bread is low in phosphorus and can be included in the diet of clients with kidney disease unless they need to watch their carbohydrate intake.

Correct Answer: C

Rationale: The correct answer is C: Broiled skinless chicken breast with brown rice. This option is suitable for a client with chronic pancreatitis as it is a low-fat, high-protein meal. Clients with pancreatitis should avoid high-fat foods like creamer, margarine, and avocados, making options A, B, and D incorrect choices.

Correct Answer: B

Rationale: The correct answer is to check gastric residual volumes every 4 hours. This action helps prevent aspiration by ensuring the stomach is emptying properly, reducing the risk of reflux and aspiration. Elevating the head of the bed to 30 degrees can help prevent aspiration by promoting proper digestion and reducing the risk of regurgitation. Administering the feeding at room temperature is important for patient comfort but does not directly prevent aspiration. Flushing the feeding tube with water every 8 hours is important for tube patency but does not directly prevent aspiration.

Correct Answer: B

Rationale: The correct action for the nurse to take when preparing to administer an intermittent tube feeding to a client with a gastrostomy tube is to flush the tube with 30 mL of water before feeding. This step helps ensure the patency of the tube by clearing any blockages or residuals. Choice A is incorrect because flushing after feeding would not prevent clogging before the feeding. Choice C is unrelated to tube feeding administration. Choice D is incorrect as the height for the feeding bag is usually recommended to be at or below the level of the stomach to prevent complications like aspiration.