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Ventricular fibrillation is a medical emergency and should be treated immediately to preserve life. Whether the person having VF suddenly falls unconscious at home or in the street, or the person is in the hospital (and VF is diagnosed from a cardiac monitoring station), it is indispensable to initiate immediate cardiopulmonary resuscitation (CPR). If VF occurs in the hospital, prompt medical attention is usually available and is more likely to be successful.
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During an out-of-hospital cardiac arrest:
- Call 911 for emergency help.
- Until help arrives, position the unconscious person’s head and neck in line with the rest of the body to help the person breathe.
- The carotid arteries are located at each side of the neck, just below each angle of the jaw. Place your fingertips on one of the carotid arteries to try to find a pulse. Not finding a carotid pulse after several attempts is usually a sign that no pulse is present.
- Start CPR with mouth-to-mouth breathing and chest compressions.
- Continue CPR until the person regains consciousness or help arrives.
Paramedics will quickly examine the person while continuing CPR. VF is treated by using an external defibrillator, which delivers a quick electric shock through the chest. The electrical shock can immediately convert the VF into a normal rhythm. Stabilizing the heart rhythm and function may require medicines, which will be given through a vein as needed.
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