Correct Answer: D

Rationale: The correct answer is D because having family members wear a gown and gloves when visiting a client with Clostridium difficile is essential to prevent the spread of infection. Options A, B, and C are incorrect. Negative air-flow systems are not necessary for preventing the spread of C. difficile. While alcohol-based hand sanitizers are effective for routine hand hygiene, they may not be sufficient for C. difficile. Cleaning contaminated surfaces with a phenol solution is not the most effective method for preventing the spread of C. difficile, as spores can be resistant to many disinfectants.

Correct Answer: B

Rationale: The most appropriate response when a client with chronic kidney disease asks about fluid restrictions is to inform them that limiting fluid intake may be necessary to prevent fluid overload. This is crucial in managing the condition and preventing complications such as edema and electrolyte imbalances. Choice A is incorrect as fluid restrictions are commonly advised for clients with chronic kidney disease. Choice C is partially correct as fluid restrictions are indeed based on lab results and daily weights, but the primary goal is to prevent fluid overload. Choice D is incorrect because fluid restrictions are not limited to just during dialysis; they are often recommended throughout the day to manage the condition.

Correct Answer: A

Rationale: The correct intervention in managing a patient with diabetic ketoacidosis (DKA) is to administer insulin and fluids. Insulin is crucial to correct hyperglycemia, while fluids are important to address dehydration. Administering oral hypoglycemics (Choice B) is not appropriate in the management of DKA as the patient may not be able to absorb oral medications due to gastrointestinal issues. Glucagon (Choice C) is not indicated in the treatment of DKA. Although monitoring blood glucose (Choice D) is important, it is not the sole key intervention for managing DKA; administering insulin and fluids are the primary interventions.

Correct Answer: B

Rationale: The correct answer is B. Changing the TPN tubing every 24 hours is crucial in preventing infection by reducing the risk of bacterial contamination. Monitoring electrolyte levels (choice A) is essential but not directly related to preventing TPN-related infections. Monitoring blood glucose levels (choice C) is important for clients receiving TPN, but it is more related to glycemic control than infection prevention. Administering insulin as prescribed (choice D) is necessary for clients with diabetes but is not directly linked to preventing TPN-related infections.

Correct Answer: B

Rationale: Administering insulin as prescribed before meals is crucial for managing diabetes. This instruction is vital as it helps the client maintain blood sugar levels within the target range. Checking blood sugar levels once daily is important but not as critical as ensuring the timely administration of insulin. Taking medication only when feeling unwell is dangerous as it may lead to uncontrolled blood sugar levels. Eating carbohydrate-rich meals may actually destabilize blood sugar levels rather than stabilizing them, making it an incorrect choice.