A 68-year-old client who is hospitalized with pneumonia is disoriented and confused 3 days after admission. Which information indicates that the client is experiencing delirium rather than dementia?
The client is oriented to person but disoriented to place and time
The client’s speech is fragmented and incoherent
The client has a history of increasing confusion over several years
The client was oriented and alert when admitted
The Correct Answer is D
Choice A reason: Orientation to person but disorientation to place and time occurs in both delirium and dementia. In delirium, acute cerebral dysfunction from causes like infection disrupts attention, while dementia’s gradual hippocampal loss affects memory. This symptom is non-specific, as it does not distinguish the acute onset critical to delirium diagnosis.
Choice B reason: Fragmented, incoherent speech can occur in delirium due to acute brain dysfunction or in advanced dementia from cortical degeneration. It reflects disrupted neural communication but is not specific to delirium’s rapid onset. This symptom alone does not differentiate the conditions, as both involve cognitive processing deficits.
Choice C reason: A history of increasing confusion over years indicates dementia, characterized by progressive neuronal loss, particularly in Alzheimer’s or vascular dementia. Delirium, conversely, has an acute onset due to reversible causes like infection. This chronic history rules out delirium, making this choice incorrect for identifying delirium.
Choice D reason: Being oriented and alert on admission, then developing confusion, indicates delirium’s acute onset, typically from pneumonia-related hypoxia or sepsis disrupting cerebral metabolism. Unlike dementia’s gradual progression, delirium’s rapid cognitive decline, often within days, reflects reversible brain dysfunction, making this the key differentiator in diagnosis.
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Naxlex Comprehensive Predictor Exams
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Correct Answer is A
Explanation
Choice A reason: Redirecting to an activity uses distraction to reduce agitation in Alzheimer’s, where hippocampal and cortical degeneration causes disorientation and memory loss. Engaging in familiar activities leverages preserved procedural memory, calming the client without confronting their delusion, which aligns with neurobiological strategies to manage confusion and distress.
Choice B reason: Stating the mother died confronts the client’s delusion, likely increasing agitation due to impaired reality testing from Alzheimer’s-related cortical damage. This approach disregards the client’s cognitive limitations, as memory deficits prevent processing such corrections, potentially worsening emotional distress and behavioral symptoms.
Choice C reason: Asking why the client seeks her mother probes a delusion rooted in Alzheimer’s-related memory loss and hippocampal dysfunction. This may confuse or frustrate the client, as they cannot articulate reasons due to cognitive impairment. Redirection is more effective than exploring motives in advanced dementia.
Choice D reason: Assuming upset and addressing emotional distress may escalate agitation, as Alzheimer’s impairs emotional regulation due to amygdala and prefrontal cortex damage. While empathetic, this response risks focusing on the delusion, which the client cannot process, making redirection to an activity a more effective, neurobiologically informed approach.
Correct Answer is A
Explanation
Choice A reason: Mild delirium involves acute confusion and impaired judgment due to cerebral dysfunction, often from metabolic or infectious causes. Accompanying the client ensures safety, as disorientation increases wandering or injury risk. Supervision mitigates risks from altered cognition while allowing mobility, supporting cerebral recovery without exacerbating confusion.
Choice B reason: Restricting the client to the unit may increase agitation, as delirium’s neurochemical imbalances, like acetylcholine deficiency, heighten restlessness. While safety is critical, blanket restriction ignores the potential benefits of supervised movement, which can reduce stress and improve cerebral perfusion, making this less appropriate than supervised accompaniment.
Choice C reason: Assessing motives may clarify intent but delays addressing immediate safety in delirium, where confusion stems from cerebral dysfunction, such as hypoxia or electrolyte imbalance. The client’s impaired judgment requires supervision over exploration of motives, as disorientation increases risk of harm, making this a secondary action.
Choice D reason: Allowing an unsupervised walk is unsafe in delirium, as acute cognitive impairment from neurotransmitter imbalances or metabolic disturbances increases wandering or injury risk. Without supervision, the client may become disoriented or lost, exacerbating cerebral stress. Accompanied walks better balance safety and mobility in this condition.
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