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5 Cards in this Set
- Front
- Back
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Distinguishing features |
Short, fluctuating disturbance in attention and awareness An additional disturbance in cognition (due to GMC, substance, toxin or multiple etiologies) Acute (hours or days)/ chronic (weeks or months) Hyperactive/hypoactive/mixed level of activity |
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Prevalence |
1-2% (8-17% in emergency department elderly) 29-64% in hospital 88% life end |
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Course and onset |
Episodic with full recovery Up to 40% die after 1 year |
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Diagnostic Criteria |
A. Disturbance in attention (reduced ability to direct, focus, sustain, and shift attention) accompanied by reduced awareness of the environment B. Disturbance develops over a short period of time (usually hours to a few days) represents a change from baseline attention and awareness and tends to fluctuate in severity during course of a day C. Additional disturbance in cognition (memory deficit, disorientation, language, Visuospatial ability or perception D. Disturbances in criteria A and C not better explained by another preexisting, established or evolving neurocognitive disorder and do not occur in the context of a severely reduced level of arousal such as coma E. Evidence from history, physical examination, or lab findings that disturbance is a direct physiological consequence of another medical condition, substance intoxication or withdrawal (due to drug of abuse or to medication) or exposure to toxin or due to multiple etiologies |
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Specifiefs |
Acute: lasting a few hours or days Persistent: lasting weeks to months Hyperactive: has hyperactive level of psychomotor activity that can be accompanied by mood lability, agitation, and/or refusal to cooperate with medical care Hypoactive: hypoactive level of psychomotor activity that may be accompanied by sluggishness and lethargy that approaches stupor Mixed levels of activity: normal level of psychomotor activity even though attention and awareness are disturbed. Includes individuals whose activity level rapidly fluctuates Substance intoxication delirium: diagnosis should be made instead of substance intoxication when symptoms in A and C predominate Substance withdrawal delirium: made instead of substance withdrawal when symptoms in A and C predominate Medication induced delirium: applies when symptoms in A and C arise as a side effect of a medication taken as prescribed Delirium due to another medical condition: evidence that disturbance is attributable to physiological consequences of another medical condition Delirium due to multiple etiologies: evidence that delirium has more than one etiology |
