characterized by misperception of sensory stimuli and, ± hallucinations. Pts are disoriented, first to time, to place, and their environment.
Disturbance of consciousness (i.e., reduced clarity of awareness of the environment) with reduced ability to focus, sustain or shift attention.
A change in cognition (such as memory deficit, disorientation, language disturbance) or the development of a perceptual disturbance that is not better accounted for by a pre-existing, established or evolving dementia.
The disturbance develops over a short period of time (usually hours to days) and tends to fluctuate during the course of the day.