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 procedure when obtaining a urine specimen from an indwelling catheter for culture and sensitivity is to cleanse the entry port before withdrawing urine. This step helps reduce the risk of contamination and ensures the accuracy of the results. Option B is incorrect because using a sterile syringe to collect urine from the collection bag is not the recommended method for obtaining a catheter specimen. Option C is incorrect as obtaining the specimen from the drainage tubing is not the appropriate technique for collecting a urine sample from an indwelling catheter. Option D is incorrect because replacing the catheter before obtaining the specimen is not necessary and may introduce unnecessary complications.

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: A

Rationale: The correct approach when measuring a client's blood pressure, especially for a client with hypertension, is to obtain the blood pressure under the same conditions each time. Consistency in measurement conditions helps ensure accurate and comparable blood pressure readings. Using a different arm for each measurement (Choice B) is not ideal as it can lead to variations in readings. Measuring the blood pressure while the client is standing (Choice C) is not the standard practice and may not provide accurate results. Taking multiple readings at different times of the day (Choice D) may be useful for monitoring blood pressure trends but is not the priority when ensuring accurate individual readings.

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.