A nurse is assessing a 78-year-old client with suspected dementia. Which assessment finding would be most indicative of Alzheimer's disease rather than other types of dementia?
1Progressive memory loss beginning with recent events while remote memories remain intact initially✓ 정답
2Sudden onset of confusion with stepwise deterioration of cognitive function
3Visual hallucinations and fluctuating levels of consciousness throughout the day
4Difficulty with speech and language accompanied by personality changes early in the disease
해설
Alzheimer's disease typically presents with progressive memory loss starting with recent events while remote memories remain intact initially, distinguishing it from other dementias. Other options describe vascular dementia (sudden onset), Lewy body dementia (visual hallucinations), or frontotemporal dementia (speech/personality changes).
Clinical Judgment
This question asks about a key Assessment Finding for the differential diagnosis of dementia. The core is to identify the most characteristic onset pattern and early symptoms of Alzheimer's Disease (AD). The correct answer, option 1's "Gradual progressive memory loss, especially starting with recent events, with remote memory preserved early on," is a textbook symptom of AD. This is directly linked to pathological changes (amyloid plaques, tau tangles) starting in the hippocampus and is a decisive clue distinguishing it from other dementias.
임상 시나리오
Clinical Practice Guide
When assessing dementia, instead of simply recording "poor memory," you should specifically assess which type of memory is affected. For example, document as "cannot remember what they ate for breakfast this morning (recent memory)" vs "remembers their wedding day clearly (remote memory)." Using standardized tools such as the Mini-Mental State Examination (MMSE) or Montreal Cognitive Assessment (MoCA) helps with objective evaluation.
Caution
In SATA (Select All That Apply) questions asking about "early symptoms of dementia," both "recent memory loss" of Alzheimer's disease and "personality changes/language impairment" of frontotemporal dementia may be included as correct answers. However, as in this question, when asked for the "Most Indicative" or "most specific to Alzheimer's disease," be careful of the trap where you need to focus on points that differentiate it from other dementias.
핵심 개념
Alzheimer's Disease (알츠하이머병) — The most common degenerative brain disease, characterized by progressive memory loss and cognitive decline. Pathologically, the accumulation of Amyloid plaques and Neurofibrillary tangles is observed within brain neurons.
Short-term Memory (단기 기억/최근 기억) — The ability to temporarily store and recall recent events or information (e.g., a conversation from a few minutes ago). In the early stages of Alzheimer's disease, this function declines first due to damage to the hippocampus.
Vascular Dementia (혈관성 치매) — Dementia caused by brain damage from stroke or cerebrovascular disease. Symptoms vary depending on the area of damage, and it is characterized by sudden onset and a stepwise progression.
Dementia with Lewy Bodies (루이소체 치매) — Accumulation of protein clumps called Lewy bodies in brain nerve cells causes this condition. Key features include recurring visual hallucinations, fluctuating cognitive function, and Parkinsonian symptoms (movement disorders).
Frontotemporal Dementia (전두측두엽 치매) — Dementia primarily involving degeneration of the frontal and temporal lobes of the brain. Early symptoms include noticeable changes in personality and behavior, or language impairment (aphasia), rather than memory loss.