Correct Answer: C

Rationale: The correct answer is C. After knee arthroplasty, it is essential for the client to use a front-wheeled walker when ambulating to ensure stability and prevent falls. Sharing this information with the assistive personnel (AP) is crucial for the client's safety and proper rehabilitation. Choices A, B, and D are incorrect because the roommate's independence, the client's footwear over stockings, and the timing of pain medication administration are not directly related to the safe ambulation of a client post-knee arthroplasty.

Correct Answer: B

Rationale: The correct answer is B. Using a bed exit alarm system is a non-restrictive intervention that alerts staff when the client tries to leave the bed, promoting safety and preventing falls. Choice A is incorrect because using restraints can have adverse effects and should be avoided whenever possible. Choice C is not the priority for a client at risk of falls due to dementia as it may increase the risk of falls without proper supervision. Choice D is also not recommended as raising all four side rails can lead to restraint and should be used cautiously, if at all. Therefore, the best option is to use a bed exit alarm system to ensure the client's safety while allowing some freedom of movement.

Correct Answer: C

Rationale: Choice C is correct because it demonstrates the client's understanding of the procedure, which involves discarding the first urine of the day at the specified time and then saving all subsequent urine for the next 24 hours. Choices A, B, and D do not reflect an understanding of the correct procedure. Choice A is incorrect because bowel movements are not part of a 24-hour urine collection. Choice B is incorrect as it does not specify discarding the first urine. Choice D is incorrect as it mentions filling up the bottle quickly, which is not the correct way to collect a 24-hour urine sample.

Correct Answer: C

Rationale: The correct answer is C: Justice. Justice in healthcare ethics refers to fairness and equality in the distribution of resources and treatments. In this scenario, ensuring that all clients waiting for a kidney transplant meet the same qualifications demonstrates the ethical principle of justice by providing equal opportunities for all candidates. Choice A, fidelity, pertains to keeping promises and being faithful to agreements, which is not the primary ethical principle at play in this situation. Autonomy, choice B, relates to respecting a patient's right to make their own decisions, which is not directly applicable in the context of organ transplant qualifications. Non-maleficence, choice D, refers to the principle of doing no harm, which is important but not the primary ethical principle highlighted in this scenario.

Correct Answer: B

Rationale: Assessing the client's gait for steadiness is the most appropriate action to ensure the safety of a client with dementia while walking. This allows the nurse to identify any issues that may increase the risk of falls or accidents. Administering PRN haloperidol or lorazepam is not indicated as the first-line approach in managing wandering behavior and can have adverse effects like increased risk of falls, confusion, or oversedation. Restraint use should be avoided whenever possible, as it can lead to physical and psychological harm to the client.