Which factor is most closely associated with cognitive decline in older adults?

Correct Answer: B

Rationale: The correct answer is B because limited physical activity and poor nutrition have been consistently linked to cognitive decline in older adults. Physical activity promotes blood flow to the brain, which helps with cognitive function. Additionally, a balanced diet rich in nutrients supports brain health. Genetic predisposition (A) can play a role but is not the most closely associated factor. Social engagement and mental stimulation (C) are beneficial for cognitive health but not the primary factor for decline. Early retirement and lack of work-related stress (D) are not directly linked to cognitive decline.

Correct Answer: B

Rationale: The correct answer is B because multimorbidity refers to the presence of multiple chronic conditions in an individual, which can complicate treatment due to interactions between medications, conflicting treatment recommendations, and the need for coordination among different healthcare providers. Managing multiple health conditions and medications can lead to potential adverse effects, drug interactions, and difficulties in prioritizing treatment goals. Choices A, C, and D are incorrect because multimorbidity actually increases treatment complexity, necessitating individualized care plans and careful consideration of potential interactions between treatments.

Correct Answer: D

Rationale: The correct answer is D because sarcopenia, which is the age-related loss of muscle mass and strength, directly impacts balance and mobility in older adults. Muscle weakness from sarcopenia reduces stability and coordination, increasing the risk of falls. This affects functional independence as it limits the ability to perform daily activities safely. Choices A, B, and C are incorrect as sarcopenia primarily affects muscle mass and strength, not body fat, lung capacity, or joint stiffness.

Correct Answer: C

Rationale: The correct answer is C: "It is the brain's ability to maintain function despite age-related changes and pathology." Cognitive reserve in older adults refers to the brain's ability to withstand age-related changes and pathology while maintaining cognitive function. This concept suggests that individuals with higher cognitive reserve may show fewer cognitive deficits even in the presence of brain damage or pathology. Choice A is incorrect because cognitive reserve is not about compensating for damage through enhanced neurogenesis but rather about maintaining function despite changes. Choice B is incorrect because cognitive reserve is not specifically about the relationship between cognitive decline and physical health; it focuses on maintaining cognitive function. Choice D is incorrect because cognitive reserve is not about developing new cognitive abilities later in life but rather preserving existing cognitive function.

Correct Answer: B

Rationale: The correct answer is B: Statistically, neglect is the most common form of elder abuse. Neglect involves the failure to provide necessary care or assistance to an elderly person, making it a prevalent form of elder abuse. This is supported by research and studies on elder abuse cases. A is incorrect because elder abuse is often underreported compared to other forms of domestic violence. C is incorrect as many cases of elder abuse go unreported due to various reasons such as fear, shame, or lack of awareness. D is incorrect as healthcare practitioners are mandated to report any suspected cases of elder abuse, not just verified cases, to protect the well-being of the elderly.