The memory disorder that affects older adults is?

RRB Nsg. Superintendent 21 July 2019 (shift 1st)

Medical & Surgical Nursing

Easy

Appeared in: RRB Nsg. Superintendent 21 July 2019 (shift 1st)

Explanation

Dementia is a syndrome characterized by an acquired, progressive impairment of memory and other cognitive functions such as abstract thinking and judgment (SRC_9).
It is not a normal part of aging, but its prevalence increases significantly with age, making it the most fitting answer for a memory disorder affecting older adults (SRC_7).
The intellectual impairment in dementia develops over time, meaning previously acquired mental functions are gradually lost, which distinguishes it from congenital conditions (SRC_7).
Key symptoms include memory loss, personality changes, and impaired reasoning, which interfere with social and occupational functioning.

Option A: Insomnia is a sleep disorder characterized by difficulty initiating or maintaining sleep. While it can affect cognitive function due to fatigue, it is not primarily a memory disorder.
Option B: Dystrophy refers to the progressive degeneration of a tissue or organ, most commonly muscle (muscular dystrophy). It is a physical condition, not a cognitive or memory disorder.
Option C: Dyspnoea is the medical term for shortness of breath. It is a symptom of respiratory or cardiovascular conditions and has no direct link to memory.

Visual 1: Diagram: Comparison of a healthy brain versus a brain affected by Alzheimer's disease (the most common cause of dementia), showing cortical shrinkage, widened sulci, and enlarged ventricles. This helps visualize the physical brain changes underlying the memory loss.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Identification of common health disorders in older adults as background academic context rather than a clinical decision trigger.
Nurses must differentiate between dementia, delirium, and depression, as they can present with similar symptoms in older adults but require different management strategies.
A key nursing priority is patient safety. This involves assessing the home environment for hazards, preventing falls, managing wandering behavior, and ensuring proper nutrition and hydration.
Patient and family education is crucial. Nurses should provide information about the disease progression, coping strategies, and available community resources like support groups.

How to Approach the Question

First, analyze the question to identify the key concepts: 'memory disorder' and 'older adults'.
Next, evaluate each option based on its medical definition.
Eliminate options that do not fit the category of a 'memory disorder'. Insomnia is a sleep disorder, dystrophy is tissue degeneration, and dyspnoea is a breathing issue.
Confirm that the remaining option, Dementia, is a condition characterized by memory loss and is prevalent in the older adult population.
This process of elimination based on defining the terms leads to the correct answer.

Concept Tested & Keywords

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