AIIMS Bhopal NO - 2018 (Shift-1st)
Mental Health Nursing
Medium
Which of the following features is present only in Dementia when compared with Delirium?
Appeared in: AIIMS Bhopal NO - 2018 (Shift-1st)
Explanation
- Systematized delusions are organized, fixed false beliefs that can develop as part of the chronic, progressive cognitive decline in dementia.
- In contrast, delirium is an acute confusional state where any delusions are typically transient, disorganized, and not systematized, reflecting the fluctuating nature of the condition.
- While other perceptual disturbances like illusions and hallucinations can occur in both, they are far more common, vivid, and characteristic of the acute onset of delirium.
Why Other Options Were Wrong
- Option A: Vivid illusions (misperceptions of real stimuli, e.g., seeing a snake in an IV tube) are a classic and common feature of delirium, not a distinguishing feature of dementia.
- Option B: Florid and vivid hallucinations, especially visual ones, are a hallmark of delirium. While hallucinations can occur in some types of dementia (like Lewy Body Dementia), they are more prominent and characteristic of delirium.
- Option D: Misperception, or the incorrect interpretation of sensory information, is a core feature of the disturbed perception and inattention seen in delirium.
Related Visual
Clinical Relevance
- Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Differential diagnosis between Dementia and Delirium based on clinical features as background academic context rather than a clinical decision trigger.
- Accurately differentiating between delirium and dementia is a critical nursing skill. Delirium is a medical emergency that is often reversible if the underlying cause (e.g., infection, medication, metabolic imbalance) is identified and treated promptly.
- Dementia is a chronic, progressive condition requiring long-term management, patient and family education, and supportive care. Misdiagnosing delirium as dementia can lead to failure to treat a life-threatening condition.
- What if? If a patient with known dementia suddenly develops vivid hallucinations and inattention, the nurse should not assume it's just a progression of their dementia. The priority is to suspect and assess for a superimposed delirium, looking for an underlying acute medical issue like a UTI or pneumonia.
How to Approach the Question
- First, identify the core concepts in the question: 'Dementia' and 'Delirium'. The question asks for a feature present 'only in Dementia' when compared to Delirium.
- Recall the fundamental difference: Delirium is an acute, fluctuating condition, while Dementia is a chronic, progressive one.
- Evaluate each option against this framework. Ask yourself: 'Is this symptom more typical of an acute, fluctuating state or a chronic, progressive one?'
- Analyze the options: 'Vivid illusions,' 'hallucination,' and 'misperception' are all acute perceptual disturbances, which aligns with the nature of delirium.
- Consider the remaining option: 'Systematized delusions occur early.' A 'systematized' or organized belief system is less likely to arise from an acute, chaotic state and more likely from a chronic, progressive cognitive change, making it the best fit for dementia.
Concept Tested & Keywords
- Concept Tested: Differential diagnosis between Dementia and Delirium based on clinical features.
- Stem keywords: Dementia, Delirium, features
- Lead-in keywords: only in
Question ID
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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) pp. 13827-13829, 13833-13835, 13421-13423
Practise the full AIIMS Bhopal NO - 2018 (Shift-1st)
Attempt every question from this paper in a timed mock, then review the full solution for each one.
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