Definition

• Confusion: lack of clarity in thinking with inattentiveness
  • A mental and behavioral state of reduced comprehension, coherence, capacity to reason
  • Patient usually subdued, disinclined to speak, physically inactive
• Delirium: a state of confusion accompanied by agitation, hallucinations, tremor, illusions (misperceptions of environmental sight, sound, or touch)
• Coma: condition of unresponsiveness; a deep sleep-like state from which the patient cannot be aroused

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