Acute confusional state, more commonly known as delirium, is a state of impaired consciousness, cognitive functioning, and perception. The condition's "acute" designation means it can appear within hours or days, and it can be resolved in hours, days, weeks, or months, depending on the cause and severity of the impairment. Although it is not permanent, delirium does require medical attention, and it may be life-threatening if the person experiencing the acute confusional state is left alone.
The symptoms of delirium are broken down into four categories.
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