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Confusion is the inability to think as clearly or quickly as you normally do. You may feel disoriented and have difficulty paying attention, remembering, and making decisions.
Disorientation; Thinking - unclear; Thoughts - cloudy
Confusion may come on quickly or slowly over time, depending on the cause. Many times, confusion lasts for a short time and goes away. Other times, it is permanent and not curable. It may be associated with delirium or dementia.
Confusion is more common in the elderly and often occurs during a hospital stay.
Some confused people may have strange or unusual behavior or may act aggressively.
Confusion may be caused by different health problems, such as:
A good way to find out if someone is confused is to ask the person his or her name, age, and the date. If they are unsure or answer incorrectly, they are confused.
If the person does not usually have confusion, call a doctor.
A confused person should not be left alone. For safety, the person may need physical restraints.
To help a confused person:
For sudden confusion due to low blood sugar (for example, from diabetes medication), the person should drink a sweet drink or eat a sweet snack. If the confusion lasts longer than 10 minutes, call the doctor.
Call 911 if confusion has come on suddenly or there are other symptoms, such as:
Also call 911 if:
If you have been experiencing confusion, call for an appointment with your doctor.
The doctor will do a physical examination and ask questions about the confusion. The doctor will ask questions to learn if the person knows the date, the time, and where he or she is. Questions about recent and ongoing illness, among other questions, will also be asked.
Tests that may ordered include:
Treatment depends on the cause of the confusion. For example, if an infection is causing the confusion, treating the infection will likely clear the confusion.
Huff JS. Confusion. In: Marx JA, Hockberger RS, Walls RM, et al., eds. Rosen's Emergency Medicine: Concepts and Clinical Practice. 8th ed. Philadelphia, Pa: Elsevier Mosby; 2013:chap 17.
Somes J. Sudden confusion and agitation: causes to investigate! Delirium, dementia, depression. J Emerg Nurs. 2010;36:486-488.
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