In which stage does a resident forget their own address, phone number, and name of high school?

The scenario described indicates a significant decline in cognitive function, typical of Stage 5 dementia, also known as moderately severe cognitive impairment. At this stage, individuals often struggle with more complex memory tasks and may forget important personal information, such as their address, phone number, or the name of their high school. These memory lapses reflect an increasing difficulty in recalling details that were previously well known, showing that their cognitive abilities have deteriorated substantially but they may still retain some memories and be somewhat aware of their surroundings and personal history.

In contrast, earlier stages of dementia, such as mild and moderate, typically involve less severe impairment. In the mild stage, individuals may still manage basic daily tasks with some memory lapses or confusion. The moderate stage might involve forgetting recent events or the names of familiar people, but they are less likely to forget personal information as significant as their own address or high school details. The severe stage usually presents with profound cognitive decline where recognition of close family or the ability to recall personal details is often lost entirely, alongside significant functional limitations. Thus, choosing Stage 5 accurately reflects the complexities of memory loss described.