Delirium is a sudden, confused mental state. It may come and go throughout the day.
Delirium causes changes to the way a person thinks and feels. Personality and behaviour can change a lot. A person may feel confused and have trouble paying attention or doing the things they normally do.
Delirium is a warning sign that a person needs help right away. Call their family doctor, nurse, healthcare provider, or Health Link at 811 if you think a person has delirium.