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Unconsciousness is when a person suddenly becomes unable to respond to stimuli and appears to be asleep. A person may be unconscious for a few seconds (fainting) or for longer periods of time.
People who become unconscious don’t respond to loud sounds or shaking. They may even stop breathing or their pulse may become faint. This calls for immediate emergency attention. The sooner the person receives emergency first aid, the better their outlook will be.
Causes of unconsciousness
Common causes of unconsciousness include:
A person may become temporarily unconscious, or faint, when sudden changes occur within the body. Common causes of temporary unconsciousness include:
Symptoms that may indicate that unconsciousness is about to occur include:
Administering First Aid
Cardiopulmonary resuscitation is an emergency procedure that combines chest compressions often with artificial ventilation in an effort to manually preserve intact brain function until further measures are taken to restore spontaneous blood circulation and breathing in a person who is in cardiac arrest.
CPR is a way to treat someone when they stop breathing or their heart stops beating.
How to Perform CPR
Treatment of unconsciousness
If unconsciousness is due to low blood pressure, a doctor will administer medication by injection to increase blood pressure. If low blood sugar level is the cause, the unconscious person may need something sweet to eat or a glucose injection.
Medical staff should treat any injuries that caused the person to become unconscious.
Complications of unconsciousness