Depression in the elderly is:

A. Dementia is not typically caused by sudden environmental changes. Instead, it is a chronic condition that develops gradually over time due to neurodegenerative diseases, such as Alzheimer's disease, vascular dementia, or Lewy body dementia.
B. Dementia is characterized by a gradual decline in cognitive function, including memory, thinking, and reasoning skills. The progression of dementia is typically slow and leads to worsening symptoms over time. Currently, most types of dementia are considered irreversible, meaning that the damage to the brain is not reversible and the condition will continue to progress.
C. Dementia is a progressive condition that develops gradually, often over months or years. It is not characterized by a sudden onset. Sudden onset of cognitive symptoms is more indicative of delirium, which can be caused by acute medical conditions or other factors.
D. Dementia generally does not involve an altered level of consciousness. Instead, it primarily affects cognitive functions such as memory, reasoning, and orientation while consciousness remains clear.

A. During escalation, individuals are experiencing increasing tension and anger but may still be able to respond to reason or directions. This is the stage where intervention is crucial to prevent the situation from worsening.
B. This phase follows the crisis and is characterized by a decrease in tension. Individuals may be more receptive to communication and reasoning at this point.
C. This is the stage where individuals have lost control, and their behavior is driven by intense emotions. They are unable to process information or respond rationally.
D. The trigger is the initial event that sets off the cycle. While it can lead to escalating emotions, it doesn't necessarily prevent individuals from listening or engaging mentally.