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Unconsciousness

A person who is unconscious is not aware of what is going on around him or her. He or she may not be able to make purposeful movements.

A person may become unconscious from an injury or a health condition.

  • Fainting or a seizure disorder (epilepsy) may cause unconsciousness that is usually brief.
  • Heart problems, such as stroke, heart attack, or changes in heart rate or rhythm (arrhythmia), can block blood and oxygen to the brain and cause unconsciousness.
  • Lack of adequate oxygen, such as when there is too much carbon monoxide in the air a person breathes, can cause a gradual unconsciousness.
  • Head injuries can "knock out" a person, making him or her unconscious.
  • Any event that leads to being in a coma, which is a deep, prolonged state of unconsciousness. Diabetic coma, caused by very high or very low blood sugar, is one type of coma.
  • Heavy alcohol or drug use or problems caused by quitting their use (withdrawal) can cause the body to go into a state of shock that may cause unconsciousness. Heatstroke, an injury, or a traumatic event can also cause shock and unconsciousness.

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About the provider search

This search will provide you with WellSpan Medical Group and Northern Lancaster County (Ephrata) Medical Group primary care physicians and specialists. If we don’t have a WellSpan Medical Group physician to meet your criteria, the search will expand to include community physicians who partner with WellSpan Medical Group physicians through the WellSpan Provider Network or provide care to patients on the Medical Staffs of WellSpan’s Hospitals.

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