DAT
Also written as: DAT — Dementia of Alzheimer's Type
Dementia of Alzheimer's Type, the clinical diagnosis used when Alzheimer's disease is the suspected cause of dementia symptoms.
Full Definition
DAT (Dementia of Alzheimer's Type) is the clinical diagnostic term used to describe dementia syndrome when Alzheimer's disease is the most likely underlying pathological cause. This terminology acknowledges that definitive diagnosis of Alzheimer's disease requires post-mortem neuropathological examination, while DAT represents the clinical syndrome characterized by progressive cognitive decline consistent with Alzheimer's pathology. The diagnosis is made based on clinical presentation, cognitive testing, neuroimaging, and exclusion of other causes of dementia. In psychiatric clinic settings, DAT patients often present with concurrent behavioral and psychological symptoms requiring specialized management.
Usage
Usage note: Use rather than definitive 'Alzheimer's disease' diagnosis in clinical settings without pathological confirmation.
In Context
- "The neuropsychological testing results were consistent with a diagnosis of DAT in the early stage." — Diagnostic assessment report
- "The patient with DAT exhibited increased agitation during evening hours, requiring adjustment of the behavioral intervention plan." — Progress note