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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Offering dessert to stop yelling uses bargaining, not distraction, and may reinforce agitation in Alzheimer’s, where cortical and amygdala damage impairs emotional regulation. This approach risks escalating distress by focusing on the behavior, which the client cannot control due to neurocognitive deficits, making it ineffective.
Choice B reason: Asking if the client wants to finish the meal focuses on the agitation’s context, potentially worsening distress in Alzheimer’s due to impaired reasoning from cortical degeneration. This confrontational approach does not redirect attention, failing to leverage preserved procedural memory, which distraction techniques use to calm neurobiological agitation.
Choice C reason: Suggesting to watch television is a distraction technique, redirecting attention from agitation triggers in Alzheimer’s. By engaging preserved sensory and procedural memory, it reduces amygdala-driven emotional distress without confronting cognitive deficits, aligning with neurobiological strategies to manage agitation and promote calm in dementia care.
Choice D reason: Stating misunderstanding focuses on the client’s communication deficits, likely increasing frustration in Alzheimer’s due to hippocampal and cortical damage. This does not distract from agitation triggers and may exacerbate distress, as the client cannot process or correct their behavior, making it an ineffective response compared to redirection.
Correct Answer is C
Explanation
Choice A reason: Disturbed Sensory Perception involves altered sensory processing, like hallucinations, not specific to anxiety disorders with flashbacks or hypervigilance. These symptoms stem from heightened amygdala activity and dysregulated cortisol in trauma-related disorders, not sensory distortion. This diagnosis is less precise, as it does not capture the trauma-specific psychological and autonomic responses observed.
Choice B reason: Anxiety is a broad diagnosis encompassing excessive worry and autonomic arousal, but it is less specific than Post-Trauma Syndrome for symptoms like flashbacks and numbing. These indicate a trauma-related disorder, likely PTSD, driven by amygdala hyperactivation and HPA axis dysregulation, requiring a diagnosis that addresses the traumatic etiology and specific symptoms.
Choice C reason: Post-Trauma Syndrome, aligned with PTSD, is the most appropriate diagnosis for symptoms like flashbacks, hypervigilance, and numbing, which result from trauma-induced changes in the amygdala, hippocampus, and prefrontal cortex. These cause intrusive memories, heightened arousal, and emotional detachment, accurately reflecting the neurobiological impact of trauma on stress response systems.
Choice D reason: Powerlessness reflects perceived lack of control, not specific to flashbacks or hypervigilance. While trauma can cause feelings of helplessness, the defining symptoms here involve trauma-specific neurological changes, like amygdala hyperactivity, better captured by Post-Trauma Syndrome. Powerlessness is secondary and l
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