What is the most common type of vision impairment in older adults?

Correct Answer: A

Rationale: The correct answer is A: Cataracts. Cataracts are the most common type of vision impairment in older adults due to the clouding of the eye's lens. As people age, proteins in the lens can clump together, leading to vision issues. Glaucoma (B) is characterized by damage to the optic nerve, AMD (C) affects the macula in the retina, and diabetic retinopathy (D) is a complication of diabetes affecting blood vessels in the retina. However, cataracts are the primary cause of vision impairment in older adults due to the natural aging process of the eye.

Correct Answer: C

Rationale: Certainly! Regular strength training exercises are crucial for improving strength and overall function in older adults with frailty. Strength training helps build muscle mass, improve balance, and increase mobility, leading to enhanced functional abilities. It also helps prevent falls and maintain independence. High-protein diet (A) supports muscle health but alone is not sufficient. Medication management (B) is important but not the primary factor for physical function. Limiting physical activity (D) can worsen frailty by causing deconditioning and loss of muscle strength.

Correct Answer: C

Rationale: The correct answer is C: Home health care support. This is because having access to home health care support can provide ongoing monitoring, medication management, and assistance with activities of daily living, which can help prevent complications and reduce the need for hospital readmissions. Minimizing polypharmacy (A) is important but may not have as significant an impact as continuous home health care support. Frequent medication adjustments (B) may lead to confusion and potential adverse effects in older adults. Specialized geriatric assessments (D) are beneficial but may not directly address the day-to-day support needed to prevent hospital readmissions.

Correct Answer: B

Rationale: The most effective approach to improve quality of life in older adults with Alzheimer's disease is non-pharmacological interventions like music therapy and structured routines. This is because these interventions have been shown to reduce behavioral symptoms, enhance cognitive function, and promote overall well-being without the potential side effects of pharmacological treatments. Music therapy can help calm and stimulate memory recall, while structured routines provide predictability and familiarity, reducing confusion and agitation. Pharmacological management of behavioral symptoms alone may not address the root causes of the behaviors and can lead to adverse effects. Physical immobilization is harmful and can worsen cognitive decline. Sedatives can have detrimental effects on cognition and may increase the risk of falls and other complications. Therefore, non-pharmacological interventions are the most effective and holistic approach to enhancing the quality of life for older adults with Alzheimer's disease.

Correct Answer: B

Rationale: The correct answer is B: Delirium in older adults results from reversible metabolic changes, such as electrolyte imbalances. Delirium is a multifactorial condition often triggered by physiological imbalances, including electrolyte disturbances. These imbalances can disrupt normal brain function, leading to confusion and cognitive impairment. Other choices are incorrect: A is more typical of sepsis, C is more associated with conditions like dementia, and D is not a primary cause of delirium.