Correct Answer: A

Rationale: The correct answer is A. Regulating oxygen flow at no more than 6 L/min via nasal cannula is a safe practice to prevent potential complications such as oxygen toxicity. Option B suggesting administering oxygen at a higher flow rate for better saturation is incorrect as it can lead to adverse effects. Option C is incorrect because using a high-flow nasal cannula for all clients is not necessary and should be based on individual client needs. Option D is incorrect as adjusting oxygen flow solely based on client comfort without considering the prescribed flow rate can compromise the effectiveness of oxygen therapy.

Correct Answer: D

Rationale: The correct answer is D: "I will replace any IV catheter when I suspect contamination during insertion." This statement demonstrates an understanding of preventive strategies for IV infections. Suspecting and replacing any contaminated IV catheter during insertion is crucial to prevent infections and ensure patient safety. Choices A, B, and C are incorrect because leaving the IV catheter in place after completing antibiotics, reusing the same IV catheter, and disconnecting the IV infusion without proper precautions can increase the risk of infections. Therefore, option D is the best choice for preventing IV infections.

Correct Answer: A

Rationale: The correct answer is to place a client with TB in a negative pressure room. Tuberculosis (TB) is an airborne infectious disease, and placing the client in a negative pressure room helps prevent the spread of the infection by containing and filtering the air within the room. Standard precautions (Choice B) are important for preventing the spread of infection in general, but specific precautions are needed for airborne diseases like TB. Placing the client in a private room (Choice C) may not provide adequate ventilation and containment of airborne pathogens. Using barrier precautions (Choice D) alone is not sufficient for preventing the airborne transmission of TB.

Correct Answer: A

Rationale: The correct action for the nurse to take next after preparing the suture remover kit and applying sterile gloves is to clean sutures along the incision site. This step is crucial in preventing infection, which is the greatest risk to the client during suture removal. Cleaning the site helps minimize the risk of introducing microorganisms into the incision, reducing the chances of infection. Grasping at the knot of the sutures with forceps (Choice B) is incorrect as it does not address the need to clean the incision. Cutting the sutures close to the skin on one side (Choice C) or pulling out the sutures with forceps in one piece (Choice D) without proper cleaning can increase the risk of infection and should not be the next step in the process of suture removal.

Correct Answer: C

Rationale: The priority nursing intervention in this scenario is to contact the primary health care provider and discuss the possibility of simplifying the medication regimen. Simplifying the medication regimen is crucial for a client with early Alzheimer's disease to ensure they can manage their medications independently and safely. This intervention focuses on optimizing the client's ability to adhere to the prescribed medication schedule. Choices A and D involve external assistance and may not address the core issue of simplifying the regimen. Choice B, while helpful, does not directly address the need to simplify the regimen to enhance the client's medication management.