Correct Answer: C

Rationale: The correct answer is C: Glucose. Total Parenteral Nutrition (TPN) is a form of nutrition delivered directly into the bloodstream, providing all essential nutrients including glucose. Monitoring glucose levels is crucial to prevent hyperglycemia or hypoglycemia. Calcium (A), Magnesium (B), and Cholesterol (D) are not typically monitored closely when a client is on TPN, as they are not directly impacted by TPN administration. Calcium and Magnesium levels are usually monitored for other conditions, and Cholesterol levels are not typically affected by TPN administration.

Correct Answer: A

Rationale: Rationale for Correct Answer A: 1. Using the defrost setting on microwave ovens to warm bottles is safe because it ensures even heating without creating hot spots that could burn the baby's mouth. 2. This method helps to preserve the nutrients in the breast milk or formula. 3. It is important to warm the bottle to body temperature to mimic the natural feel of breast milk for the baby's comfort. Summary of Incorrect Choices: B: Feeding the baby partially used bottles after 24 hours can increase the risk of bacterial contamination and foodborne illness. C: Mixing two parts water and one part concentrate for formula concentrate is incorrect as it may dilute the formula, leading to inadequate nutrition for the baby. D: Adding new formula to partially used bottles can alter the balance of nutrients and increase the risk of contamination, affecting the baby's health.

Correct Answer: D

Rationale: The correct response is D because it encourages the mother to provide specific information about the toddler's behavior indicating pain. This helps the nurse assess the severity and nature of the earache accurately. Options A and C are dismissive and may overlook a potential health issue. Option B suggests immediate action without gathering information first, which may not be necessary.

Correct Answer: A

Rationale: The correct first step in managing a client with acute renal failure is to administer IV fluids (Choice A). This is crucial to ensure adequate hydration and maintain renal perfusion. By administering IV fluids, you can help improve kidney function and prevent further damage. Monitoring urine output (Choice B) is important but comes after addressing the fluid balance with IV fluids. Performing a CT scan (Choice C) is not typically the initial step in managing acute renal failure as it does not directly impact the patient's immediate condition. Administering diuretics (Choice D) can worsen the condition by further reducing kidney function, so it is not the recommended first step.

Correct Answer: D

Rationale: The correct answer is D: Cover the burn site with a clean, dry dressing. This intervention helps protect the burn from infection, promotes healing, and reduces pain. Ice can further damage the skin. Pain medication may be needed but does not address wound care. Maintaining a sterile dressing is crucial, but covering with a clean, dry dressing is more practical and achievable in most settings.