Dementia of Alzheimer's Type
Dementia of Alzheimer’s type is a progressive syndrome in which Alzheimer’s pathology gradually impairs memory, reasoning and independent daily function.
Key takeaways
- Dementia requires loss of everyday function, not memory concern or a low screening score alone.
- Sudden confusion over hours or days suggests delirium, medicine effects, infection or another urgent cause rather than expected progression.
- Cognitive medicines may offer modest benefit for selected stages, while safety planning and carer support remain essential.
The listings below do not confirm Alzheimer’s disease or suit every stage; a cognitive clinician should guide selection and review.
Building the diagnosis
History from the person and someone who knows them establishes change over time and impact on finances, medicines, cooking and navigation. Cognitive assessment, neurological examination, blood tests and brain imaging help exclude thyroid disease, deficiency, stroke, tumour and other dementia patterns.
Treatment beyond tablets
Cholinesterase inhibitors and memantine have stage-specific roles and can affect heart rate or gastrointestinal function. Reviews check whether benefit outweighs adverse effects. Exercise, routines, hearing and vision care, driving review, advance planning and respite address needs medicines cannot.
When to seek urgent care
Seek urgent assessment for sudden confusion, new weakness or speech difficulty, seizure, head injury, fever with marked drowsiness, wandering into immediate danger or inability to maintain hydration and safety.