Correct Answer: A

Rationale: The correct answer is A: Physical exercise. Engaging in physical exercise has been shown to improve blood flow to the brain, promote the growth of new brain cells, and enhance cognitive function. This helps maintain brain health and may reduce the risk of developing dementia. Other choices are not as directly related to brain health. B: Stimulating mental activity is important but not as effective as physical exercise in preventing dementia. C: Socialization is beneficial for overall well-being but does not have a direct impact on brain health. D: Crossword puzzles are a form of mental stimulation, but physical exercise has a greater impact on brain health.

Correct Answer: C

Rationale: The correct answer is C: 90 y.o woman with advanced Parkinson's dz. Older adults with advanced Parkinson's disease are more vulnerable to abuse due to their physical and cognitive impairments. They may be dependent on caregivers, making them easy targets for abuse. The other choices do not indicate significant vulnerability to abuse. Choice A is a common demographic but lacks specific vulnerability factors. Choice B with cataracts and Choice D with early Lyme disease do not inherently increase the risk of abuse.

Correct Answer: C

Rationale: The correct answer is C: Urinary tract infections (UTIs). UTIs are a common cause of delirium in hospitalized older adults due to their impact on the central nervous system. UTIs can lead to systemic inflammation and affect cognitive function, resulting in delirium. Other choices like medication side effects, sleep deprivation, and electrolyte imbalances can contribute to delirium but are not as common or direct as UTIs in this population.

Correct Answer:

Rationale: Correct Answer: Regular physical activity and healthy diet Rationale: 1. Regular physical activity helps maintain cardiovascular health, muscle strength, and balance in older adults, reducing the risk of falls and chronic diseases. 2. A healthy diet provides essential nutrients for overall health and helps prevent conditions like obesity, diabetes, and heart disease. 3. Both components are key in primary prevention by promoting overall well-being, reducing the risk of age-related health issues, and enhancing quality of life. Incorrect Choices: A: Annual health screenings - While important for early detection, screenings alone do not prevent health issues. B: Social isolation prevention programs - Important for mental health, but not primary prevention. C: Routine medication management - Important for managing existing conditions, not primary prevention. D: Memory enhancement exercises - Beneficial for cognitive health but not primary prevention for physical health issues in older adults.

Correct Answer: A

Rationale: The correct answer is A: Crusting. Crusting on the skin of an older client can indicate a potential complication such as an infection or skin condition. It suggests that there may be an issue with the skin's integrity, leading to the formation of crusts. Wrinkling (B) and thinning/loss of elasticity (C) are common age-related changes and not necessarily indicative of a complication. Choice D is a duplicate of choice A, so it is incorrect. In summary, crusting is a sign of a potential skin complication, while the other choices are more likely to be normal age-related changes.