What is Delirium?

Delirium is a clinical state characterized by an acute change in a person’s mental status. It usually comes on quickly, over hours or days. It is marked by extreme, fluctuating changes, including:

• Changes in perception and sensation
• Difficulties with ability to:
  • Focus
  • Sustain and shift attention
  • Think and reason rationally
  • Function normally
  • Communicate clearly