"improving intensive care in Scotland"

Differences between delirium and dementia

 

 

Delirium

Dementia

Consciousness

Decreased or hyper alert Alert

Orientation

Disorganised Disorientated

Course

Fluctuating Steady slow decline

Attention

Impaired Usually normal

Psychomotor

Agitated or lethargic Usually normal

Hallucinations

Perceptual disturbances Usually not present

Sleep-wake cycle

Abnormal Usually normal

Speech

Slow, incoherent Aphasic, difficulty finding words

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