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

Answer and Explanation

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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Correct Answer is A

Explanation

Choice A reason: Fine motor tremors are a common early side effect of lithium, affecting cerebellar function due to its narrow therapeutic index and sodium channel interactions. These typically subside within weeks as the body adjusts to stable serum levels (0.5–1.2 mEq/L), making this an accurate, reassuring response.

Choice B reason: Dismissing tremors as unimportant unless persistent for a month is incorrect. Lithium tremors, linked to cerebellar effects, often resolve sooner, but persistent tremors may indicate toxicity (levels >1.5 mEq/L), risking neurological damage. This response delays necessary monitoring, ignoring the drug’s neuropharmacological impact.

Choice C reason: Acknowledging tremors but implying the client’s concern is excessive is dismissive. Tremors result from lithium’s cerebellar effects, a legitimate side effect. This response fails to educate about the expected resolution timeline or need for monitoring, risking patient distrust and ignoring the drug’s neurobiological effects.

Choice D reason: Labeling tremors as a potential toxicity sign is misleading, as early fine tremors are typically benign, not indicative of toxicity (>1.5 mEq/L), which involves severe symptoms like confusion. This overstates risk, causing unnecessary alarm, and does not address the common, transient cerebellar effect of lithium.

A. Designate a staff member to accompany the client on the walk B. Tell the client the walk is not allowed and restrict him to the unit C. Further assess the client's motives for wanting to walk D. Give the client permission to go on a walk on the grounds

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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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?

Nursing Test Bank

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Correct Answer is A

Explanation

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Correct Answer is A

Explanation

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