SCCJA Basic Law Enforcement (BLE) Pre-Academy Practice Test

Alzheimer’s disease accounts for approximately what percentage of memory disorder or dementia cases?

10-20% 30-40% 60-80% 90-100%

Correct Answer:

60-80%

Explanation:

The main idea here is knowing how common Alzheimer's disease is among dementia cases. Alzheimer's is the most frequent cause of dementia and accounts for roughly sixty to eighty percent of cases. That means about the majority of people with dementia have Alzheimer's as the underlying condition, with the rest due to other dementias like vascular, Lewy body, or frontotemporal types, or mixtures of these. So the best match is the sixty to eighty percent range. The other options are either too low or imply almost all dementia is Alzheimer's, which isn’t accurate given the variety of other dementia causes.

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