Call 911 if:
- A person is unconscious for more than a few seconds.
- Confusion occurs with other signs of a stroke, such as sudden weakness, numbness, inability to move, changes in vision, or slurred speech.
- Confusion and memory loss develop quickly, over a few hours or days. This is called delirium. It can be a sign of many serious problems, such as a medicine problem, an infection, an alcohol or drug problem, or a worsening of a long-term illness like heart disease or diabetes.
Call a doctor if:
- A person faints for a second or two and is now awake.
- A person with diabetes faints, even if he or she is now awake. This could be a low or high blood sugar emergency.
- Fainting has occurred more than once.
- You are worried that confusion or memory loss is caused by medicine or a health problem.
- Confusion or memory loss occurs with changes in behavior or personality.
- You have new trouble with familiar things, like how to read or how to tell time, or you get lost in places you know well.
- Confusion or memory loss starts to upset your daily life.