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A person who has a VF episode will suddenly collapse or become unconscious, because the brain and muscles have stopped receiving blood from the heart.
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Ventricular fibrillation is often associated with acute ischemic events ( ischemia involves the deprivation of oxygenated blood to an area of tissue), and with chronic ischemic heart disease. It is frequently seen immediately following a heart att...
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Unconsciousness is when a person is unable to respond to people and activities. 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 ment...
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