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Alternative names Return to top
Loss of consciousness - first aid; Coma - first aid; Mental status change; Altered mental statusDefinition Return to top
Unconsciousness is when a person is unable to respond to people and other stimuli around him or her. Often, this is called a coma or being in a comatose state.
Other changes in awareness can occur without becoming unconscious. Medically, these are called "Altered Mental Status" or "Changed Mental Status." They include sudden confusion, disorientation, or stupor.
Unconsciousness and any other SUDDEN change in mental status must be treated as a medical emergency.
If someone is awake but less alert than usual, ask a few simple questions -- What is your name? What is the date? How old are you? If the person doesn't know or answers incorrectly, then his or her mental status is diminished.
Considerations Return to top
Being asleep is not the same thing as being unconscious. A sleeping person will respond to loud noises or gentle shaking -- an unconscious person will not.
An unconscious person cannot cough or clear his or her throat. This can lead to death if the airway becomes obstructed.
Causes Return to top
Symptoms Return to top
First Aid Return to top
Do Not Return to top
Call immediately for emergency medical assistance if Return to top
Call 911 if the person:
Prevention Return to top
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Page last updated: 28 October 2004 |