Which term is the best match for chronic neurodegenerative disease characterized by progressive cognitive decline?

Which term is the best match for chronic neurodegenerative disease characterized by progressive cognitive decline?

• A. Delirium
• B. Alzheimer's disease
• C. ARF
• D. Nitrogen Narcosis

Answer: (B)

Chronic neurodegenerative disease with progressive cognitive decline is dementia, and the most characteristic example in this context is Alzheimer's disease. It typically starts insidiously with memory impairment and then slowly worsens across other cognitive domains, eventually interfering with daily activities. This gradual, progressive course distinguishes it from other conditions. Delirium, by contrast, is an acute, fluctuating disturbance of attention and cognition usually triggered by an acute medical issue, infection, medications, or intoxication—not a slow, steady decline. ARF refers to acute kidney failure, and nitrogen narcosis is a diving-related gas intoxication, neither of which explains a chronic, progressive cognitive decline.

Chronic neurodegenerative disease with progressive cognitive decline is dementia, and the most characteristic example in this context is Alzheimer's disease. It typically starts insidiously with memory impairment and then slowly worsens across other cognitive domains, eventually interfering with daily activities. This gradual, progressive course distinguishes it from other conditions.

Delirium, by contrast, is an acute, fluctuating disturbance of attention and cognition usually triggered by an acute medical issue, infection, medications, or intoxication—not a slow, steady decline. ARF refers to acute kidney failure, and nitrogen narcosis is a diving-related gas intoxication, neither of which explains a chronic, progressive cognitive decline.