AIIMS Bhopal NO - 2018 (Shift-1st)
Psychiatric Nursing
Hard
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, and often paranoid beliefs that can appear during the course of dementia.
- In contrast, delirium is characterized by fluctuating, disorganized thoughts and prominent perceptual disturbances.
- Delusional thought content in delirium typically lacks any internal structure or interconnectedness, unlike the more structured delusions that can be seen in dementia.
- Features like vivid illusions, hallucinations, and misperceptions are classic hallmarks of delirium, not dementia.
Why Other Options Were Wrong
- Option A: Vivid illusions, which are misperceptions of real external stimuli (e.g., seeing a snake instead of an IV tube), are a classic and common feature of delirium.
- Option B: Hallucinations, especially those that are visual and vivid, are a hallmark symptom of delirium. While they can occur in some types of dementia (like Lewy Body Dementia), they are more prominent and characteristic of an acute delirious state.
- Option D: Misperception of the environment, people, and events is a core feature of the inattention and disorganized thinking 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.
- Differentiating between delirium and dementia is a critical nursing skill because delirium is often a medical emergency indicating a reversible underlying cause (e.g., infection, dehydration, medication toxicity) that requires immediate intervention.
- Misdiagnosing delirium as a progression of dementia can lead to a failure to treat the acute underlying cause, resulting in increased morbidity, mortality, and permanent cognitive decline.
- What if? If a patient with a known history of dementia suddenly develops increased confusion, inattention, and visual hallucinations, the nurse's priority is to suspect a superimposed delirium and assess for new infections, medication changes, or metabolic disturbances, rather than assuming it's just the dementia worsening.
How to Approach the Question
- First, identify that the question asks for a feature that is specific to dementia when compared with delirium.
- Recall the core characteristics of each condition. Delirium is an acute, fluctuating state of confusion with prominent perceptual disturbances. Dementia is a chronic, progressive cognitive decline.
- Evaluate each option based on this core difference.
- Vivid illusions, hallucinations, and misperceptions are all forms of perceptual disturbance, which are hallmarks of the acute confusional state of delirium.
- Systematized delusions are organized, persistent false beliefs. This type of thought disorder is more consistent with a chronic, progressive illness like dementia, rather than the transient, disorganized state of delirium.
- Conclude that systematized delusions are the most likely feature to be present in dementia and not in delirium among the choices provided.
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, when compared with
- Negative lead-in flag: false
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
E6 Nelson Textbook of Pediatrics(2024) — Volume 1 p. 341-343
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.
More Delirium and Dementia Questions
- \ \ \ \ \ \ is an acquired global impairment of intellect, memory and personality but without impairment of consciousness.
- Disturbances of orientation, memory & intelligence are present in which of the following conditions?
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- is an acute disturbance of consciousness change in cognition that develops over a brief period?
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