11. Delirium

Confusion, agitation, and restlessness are common near the end of life. Delirium (sudden confusion and disorientation) can be caused by the progression of the terminal disease, a failing respiratory system (providing less oxygen to the brain), or medications they are taking.9
There may even be episodes of hallucination where they see or hear things that are not there9
Kidney failure common near the end of life can also flood the body with chemicals that affect the brain. Even constipation and dehydration can trigger delirium in people approaching death.9
Delirium is often a sign of impending death. Effort is typically placed on making your loved one as comfortable as possible.10