Decreased consciousness is reduced alertness or awareness.
Alternative Names
Stuporous; Mental status - decreased; Loss of alertness; Decreased consciousness; Alertness - decreased; Changes in consciousness; Obtundation; Coma; Unresponsiveness
Considerations
A persistent coma is called vegetative state.
Common Causes
Many conditions can cause decreased consciousness, including:
Alcohol intoxication
Drug intoxication (particularly opiates, narcotics, sedatives, and anti-anxiety or seizure medications)
A decrease in consciousness almost always require a doctor's attention, except perhaps when due to alcohol intoxication, simple fainting, or a previously recognized seizure disorder.
See the article on seizures for tips on how to care for a person who is having a seizure.
Persons with epilepsy or other seizure disorder should carry a Medic-Alert bracelet or pendant describing their condition. Such individuals should avoid situations that have previously triggered a seizure.
Call your health care provider if
See medical help if someone has unexplained, decreased consciousness. Call your local emergency number (such as 911) if normal consciousness does not return quickly.
Review Info
Jacob L. Heller, MD, Emergency Medicine, Virginia Mason Medical Center, Seattle, Washington, Clinic. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc. , 04/21/2009
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