Correct Answer: D

Rationale: The correct answer is D: Ensuring early mobilization and reorientation. Delirium in hospitalized older adults is often caused by factors like immobility and disorientation. Early mobilization helps maintain physical and cognitive function, reducing the risk of delirium. Reorientation techniques help patients stay connected to reality, preventing confusion. Limiting visitors (A) can lead to social isolation, exacerbating delirium. Reducing physical restraints (B) is important but not as effective as promoting mobility. Providing a calm environment (C) is beneficial but may not address the underlying causes of delirium.

Correct Answer: B

Rationale: The correct answer is B: Providing palliative care focused on symptom management and comfort. This is the most appropriate intervention for an older adult with advanced heart failure as it prioritizes quality of life by focusing on alleviating symptoms and ensuring comfort. High-dose diuretics (choice A) may lead to electrolyte imbalances and worsen the patient's condition. Initiating aggressive cardiac surgery (choice C) may be too risky and invasive for an older adult with advanced heart failure. Enforcing strict bed rest (choice D) can lead to deconditioning and muscle wasting, further compromising the patient's quality of life.

Correct Answer: A

Rationale: The correct answer is A because it accurately reflects the multifactorial nature of diabetes in older adults. Age-related changes, coupled with lifestyle factors like poor diet and lack of exercise, contribute to the high incidence of diabetes in this population. This statement acknowledges the complexity of diabetes in older adults. B is incorrect because while nurses should have knowledge about diabetes in older adults, the statement does not specifically address the multifactorial nature of the disease in this population. C is incorrect because ethnicity can indeed play a role in diabetes risk and should not be dismissed outright. D is incorrect because the development of diabetes is not considered a normal age-related change; it is a medical condition that can be influenced by various factors.

Correct Answer: D

Rationale: The correct answer is D: Ensuring early mobilization and reorientation. Delirium in hospitalized older adults is often caused by factors like immobility and disorientation. Early mobilization helps maintain physical and cognitive function, reducing the risk of delirium. Reorientation techniques help patients stay connected to reality, preventing confusion. Limiting visitors (A) can lead to social isolation, exacerbating delirium. Reducing physical restraints (B) is important but not as effective as promoting mobility. Providing a calm environment (C) is beneficial but may not address the underlying causes of delirium.

Correct Answer: B

Rationale: The correct answer is B. Checking postural blood pressures is essential to assess for orthostatic hypotension in an elderly client with a history of falls and hypertension medication. Orthostatic hypotension can lead to falls, so monitoring postural B/Ps is crucial. Checking B/P every 2 hours (choice A) is not necessary and could cause unnecessary discomfort to the client. Checking serum sodium levels (choice C) and serum creatinine levels (choice D) are not directly related to the client's risk factors for falls post-prostate surgery.