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: A

Rationale: Emptying the colostomy bag regularly is essential to prevent leakage and infection. By regularly emptying the bag, the risk of irritation to the skin surrounding the stoma is reduced. Providing a high-fiber diet is important for overall bowel health but is not directly related to colostomy care. While monitoring for signs of infection is crucial, the primary focus should be on proper bag emptying. Changing the colostomy bag every 3 days may not be necessary for all patients and could vary based on individual needs and the type of colostomy.

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.

Correct Answer: A

Rationale: Assessing mobility should be the nurse's priority as it ensures the client's safety and helps in developing an appropriate care plan. By evaluating the client's ability to move after the knee arthroplasty, the nurse can identify any immediate issues or complications that need to be addressed promptly. Monitoring vital signs, providing pain relief, and reinforcing discharge teaching are important aspects of care but assessing mobility takes precedence in ensuring the client's immediate well-being and identifying any potential risks.

Correct Answer: B

Rationale: The correct answer is to prioritize investigating the client's medication history. This is important because certain medications can contribute to agitation in clients with dementia. Understanding the medication history can help identify potential causes of agitation and guide appropriate interventions. Checking for fluid and electrolyte imbalances is important in healthcare but may not directly relate to the client's agitation. While environmental factors can influence behavior, investigating the medication history is more pertinent in this case. Cognitive functioning assessment is crucial in dementia care but may not be the priority when addressing acute agitation.