Correct Answer: D

Rationale: The correct answer is D: cerebral vascular disease. Microvascular changes in diabetes mainly affect small blood vessels in organs like the eyes (retinopathy), kidneys (nephropathy), and nerves (neuropathy). Cerebral vascular disease involves larger blood vessels in the brain, not typically considered a result of microvascular changes in diabetes. Retinopathy, nephropathy, and neuropathy are well-documented complications of uncontrolled diabetes due to damage to small blood vessels in these specific organs.

Correct Answer: B

Rationale: Loneliness in older adults can lead to increased stress, inflammation, and unhealthy behaviors, all of which can elevate the risk of cardiovascular disease and depression. Social isolation can also impact mental health. Choice A is incorrect as loneliness does impact health. Choice C is incorrect as loneliness typically weakens immune function. Choice D is incorrect as loneliness affects both mental and physical health.

Correct Answer: A

Rationale: The correct answer is A, the Gerontological Society of America, because it includes members from various disciplines such as sociology, psychology, biology, and medicine. This interdisciplinary approach allows for a holistic understanding of aging. The other choices focus specifically on nursing (B), aging (C), or higher education (D), and do not encompass a wide range of disciplines like choice A. This makes them more specialized and less likely to have a diverse membership across different fields.

Correct Answer: D

Rationale: The correct answer is D because memory loss affecting daily functioning is a key indicator of dementia, not normal aging. Normal aging may involve some forgetfulness, but it typically does not significantly impact daily activities. Choice A is incorrect because difficulty recalling recent events can occur in both normal aging and dementia. Choice B is incorrect as increased forgetfulness is a common feature of aging and may not necessarily indicate dementia. Choice C is incorrect as forgetting names of familiar people can also be a normal part of aging and does not solely point to dementia. Memory loss affecting daily functioning is a more specific and severe symptom that strongly suggests dementia over normal aging.

Correct Answer: D

Rationale: The correct answer is D because pursed lip breathing helps prevent airway collapse by maintaining positive pressure in the airways, reduces anxiety by promoting relaxation, and enhances effective breathing by improving oxygen exchange. Choice A is incorrect as pursed lip breathing does not directly prevent the build-up of secretions. Choice B is incorrect as comfort is not the primary purpose of pursed lip breathing. Choice C is incorrect as while pursed lip breathing can improve respiratory muscle function, its primary benefit lies in preventing airway collapse, reducing anxiety, and promoting effective breathing.