Which type of memory loss occurs in Alzheimer's disease?

Appeared in: AIIMS Delhi NO - 2017

Explanation

Recent memory loss (also called short-term memory loss) is the hallmark and typically the first noticeable symptom of Alzheimer's disease.
This occurs because the disease process first affects brain areas, like the hippocampus, that are essential for converting short-term memories into long-term ones.
Clinically, this manifests as difficulty recalling recent events, conversations, or newly learned information.
In contrast, memory for distant events (remote memory) is usually preserved until the later stages of the disease.

Why Other Options Were Wrong

Option A: Remote memory loss, which is the inability to recall events from the distant past, is not a feature of early Alzheimer's disease.
Option C: Anterograde memory loss is the inability to form new memories. While this is the underlying mechanism that causes recent memory loss in Alzheimer's, 'recent memory loss' is the clinical description of the symptom itself.
Option D: Complete memory loss is not a clinically specific term and does not accurately describe the initial stages of Alzheimer's.

Related Visual

Clinical Relevance

Nursing practice connection: Knowing Memory Impairment in Alzheimer's Disease helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Nurses must be skilled in assessing for early signs of cognitive decline, including recent memory loss. Using tools like the Mini-Mental State Examination (MMSE) can help quantify the deficit.
When caring for patients with recent memory loss, nurses should use memory aids like calendars, clocks, and simple, repeated instructions to promote safety and orientation.
Patient and family education is crucial. Explaining that the memory loss is a symptom of the disease can reduce frustration and help families develop effective coping strategies.

How to Approach the Question

First, identify the core concept of the question, which is the characteristic type of memory loss in Alzheimer's disease.
Recall the typical progression of Alzheimer's. The disease begins in brain regions responsible for new memory formation.
Evaluate the options based on this knowledge. 'Recent memory loss' directly relates to the inability to recall newly acquired information, which is the earliest and most prominent symptom.
Differentiate 'recent memory loss' (the symptom) from 'anterograde amnesia' (the underlying mechanism). In clinical questions, the observable symptom is often the best answer.
Eliminate options that describe later-stage symptoms (remote memory loss) or are too general (complete memory loss).

Concept Tested & Keywords

Concept Tested: Memory Impairment in Alzheimer's Disease
Stem keywords: memory loss, Alzheimer's disease
Lead-in keywords: Which type
Negative lead-in flag: false

Question ID

QPaZb8nMW6MUumqTTypKYK

Reference Book

E6 Robert Boland, Marcia L. Verduin - Kaplan and Sadock's Comprehensive Text of Psychiatry-Wolters Kluwer Health (2024) (pp 1-16525 of 16525) p. 3307-3309

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