Correct Answer: B

Rationale: The correct answer is to consult with the healthcare provider to adjust the medication. It is crucial for the healthcare provider to be involved in changing pain medication for a client with terminal cancer to ensure that the new dosage is appropriate and safe. Option A is incorrect because adjusting medication without consulting the healthcare provider can be dangerous and is not within the scope of the nurse's practice. Option C is incorrect because ignoring the client's request goes against the principles of patient-centered care. Option D is incorrect as the primary goal should be to provide effective pain relief with the appropriate dosage, not to increase the medication arbitrarily.

Correct Answer: B

Rationale: The correct action to promote healing in a patient with impaired skin integrity is to use sterile saline to clean the wound. Sterile saline helps prevent infection and promotes healing of wounds by keeping the area clean. Applying a dry, sterile dressing (Choice A) may not be effective as it does not address the need for wound cleaning. Applying a warm compress (Choice C) may not be suitable for all types of wounds and could potentially cause harm. Keeping the wound open to air (Choice D) is generally not recommended as it can lead to infection and slow down the healing process.

Correct Answer: A

Rationale: The correct answer is to check the ventilator tubing for disconnection first when a patient on mechanical ventilation experiences a sudden drop in oxygen saturation. This is crucial because equipment malfunction, such as tubing disconnection, can lead to decreased oxygen delivery, resulting in a drop in oxygen saturation. Checking the tubing ensures that the ventilation system is functioning properly and that the patient is receiving the necessary oxygen. Option B is incorrect because increasing oxygen flow without checking for equipment issues may not address the root cause of the drop in saturation. Option C is not the priority in this situation as the immediate focus should be on assessing and ensuring the functioning of the ventilation equipment. Option D delays addressing the potential equipment malfunction, which could worsen the patient's condition if not promptly resolved.

Correct Answer: B

Rationale: The correct answer is B: Gait. Gait refers to the manner in which a person walks, including aspects such as stride length, step width, and walking speed. When a nurse observes a patient's gait, they are assessing their mobility and looking for any abnormalities or issues in their walking pattern. Choice A, body alignment, focuses more on the posture and position of the body rather than the actual walking pattern. Choice C, activity tolerance, relates to the ability to withstand physical activity without experiencing excessive fatigue. Choice D, range of motion, pertains to the extent of movement at a joint and is not directly related to observing the way a patient walks.

Correct Answer: B

Rationale: The most important nursing action when caring for a patient with a central venous catheter (CVC) is to change the CVC dressing every 72 hours. This practice reduces the risk of infection and ensures the catheter remains secure. Monitoring the patient's blood pressure regularly is important but not the most crucial action when managing a CVC. Flushing the CVC with normal saline is essential but not the most important action. Avoiding using the CVC for blood draws is a good practice, but it is not the most critical nursing action in this scenario.