Correct Answer: B

Rationale: The correct method of safely using a sterile dressing is to discard it after 24 hours of use. This is important to prevent contamination and promote proper wound healing. Choice A is incorrect because reusing a dressing, even if it appears clean, can introduce contaminants. Choice C is incorrect as dressing changes should not be based solely on visible drainage; they should be done within the recommended time frame. Choice D is incorrect because changing a dressing every 4 hours, regardless of its condition, can lead to unnecessary wastage and disturbance to the wound healing process.

Correct Answer: B

Rationale: The correct answer is B: "Ensure the chest tube is connected to a closed drainage system." This is a critical nursing action when managing a patient with a chest tube because it is essential for proper drainage and to prevent complications such as air leaks or infections. Option A is incorrect because keeping the chest tube clamped at all times would prevent proper drainage and could lead to complications. Option C is incorrect as emptying the chest tube drainage system should be done based on assessment findings rather than a fixed time interval. Option D is incorrect because disconnecting the chest tube when the patient is ambulating can lead to complications like a pneumothorax.

Correct Answer: B

Rationale: The correct course of action is to remove the jewelry and document the removal. While religious beliefs should be respected, ensuring patient safety during surgery is crucial. Securing the jewelry may not be sufficient to prevent any interference during the surgical procedure. Documenting the removal is important for legal and documentation purposes. Delaying the surgery or removing the jewelry with the family's permission may not be the best options as patient safety should be the top priority in this situation.

Correct Answer: A

Rationale: The most important action for the nurse to take when caring for a patient on contact precautions is to wear gloves when entering the patient's room. This is crucial in preventing the spread of infection from the patient to the healthcare provider and vice versa. Placing the patient in a private room may be necessary for airborne precautions but is not specifically related to contact precautions. Using a dedicated blood pressure cuff for the patient is important for preventing cross-contamination but is not the most critical action. Disposing of equipment in a biohazard bag is a standard procedure but is not the most important action in this scenario.

Correct Answer: D

Rationale: The correct answer is to monitor the patient's protein intake closely. In patients with chronic kidney disease on a low-protein diet, monitoring protein intake is crucial to prevent complications such as malnutrition or inadequate nutrient intake. Encouraging small, frequent meals (Choice A) can be beneficial but is not the priority over monitoring protein intake. Monitoring intake and output (Choice B) is important but does not directly address the specific focus on protein intake. Educating the patient on the benefits of a low-protein diet (Choice C) is essential but not as immediate as monitoring the actual protein intake.