Correct Answer: B

Rationale: Restlessness and agitation in clients with dementia should be addressed immediately as they can indicate underlying causes such as pain, discomfort, or unmet needs. Addressing these symptoms promptly can help prevent the escalation of behavioral issues and improve the client's quality of life. While frequent episodes of wandering at night, mild confusion during the day, and incontinence are also important issues to address in clients with dementia, restlessness and agitation usually require immediate attention to ensure the safety and well-being of the client.

Correct Answer: C

Rationale: After a bronchoscopy, the nurse's priority is to check for a gag reflex. This action helps assess the client's ability to protect their airway after sedation. Maintaining airway patency is crucial post-procedure. Monitoring oxygen levels is important but ensuring airway protection takes precedence. Encouraging the client to eat and administering IV fluids are essential aspects of care but are not the immediate priority in this situation.

Correct Answer: B

Rationale: The correct position for a lumbar puncture is the lateral recumbent position. This position allows the spine to curve naturally, widening the spaces between the vertebrae, making it easier and safer to perform the procedure. Supine with head elevated (Choice A) would not provide the proper positioning for a lumbar puncture as it does not allow for proper access to the lumbar area. Prone with arms at sides (Choice C) would not be suitable as it would not facilitate the procedure. Sitting with back rounded (Choice D) is also incorrect as it does not allow for the proper alignment of the spine needed for a lumbar puncture.

Correct Answer: B

Rationale: The correct answer is B: 'Identify any reversible causes of delirium.' When managing a client with delirium, it is crucial to first identify and address any reversible factors contributing to the delirium. Administering sedatives (Choice A) may worsen delirium and is not the primary intervention. Increasing environmental stimulation (Choice C) can exacerbate symptoms. Limiting noise and providing a calm environment (Choice D) are beneficial but not as crucial as identifying reversible causes.

Correct Answer: A

Rationale: The correct answer is A: Sepsis and respiratory failure. Untreated pneumonia can lead to severe complications such as sepsis, which is a life-threatening response to infection, and respiratory failure, where the lungs can no longer provide enough oxygen to the body. Heart failure and kidney failure (choice B) are not direct complications of untreated pneumonia. Pulmonary embolism and electrolyte imbalance (choice C) are also not commonly associated with untreated pneumonia. Liver failure and electrolyte imbalance (choice D) are not typical complications of pneumonia.