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• Defibrillators produce a defibrillation (electric shocks) that could restore the normal heart characteristic of the sufferer.

• Nevertheless, they’re simplest indicated for a few arrhythmias (unusual coronary heart beatings), specially ventricular fibrillation (VF) and pulseless ventricular tachycardia. Defibrillation isn’t indicated if the affected person is conscious or has a normal pulse. Defibrillation is also now not indicated if the heart has absolutely stopped, as in asystole or pulseless electric pastime (PEA), in the ones cases a everyday CPR might be used to oxygenate the mind till the heart feature may be restored. Improperly given electrical shocks can cause risky arrhythmias, which includes the ventricular fibrillation (VF).

• The preferred defibrillation device, prepared for a quick use out of the clinical centres, is the automatic external defibrillator (AED), a transportable machine of small length (much like a briefcase) that can be used by any consumer with out a preceding training. That device produces recorded voice commands that guide to the user alongside the defibrillation manner. It additionally exams the victim’s situation to use robotically electric powered shocks at a correct degree, if they are wanted. Other fashions are semi-automatic and want that the user push a button earlier than generating an electric powered surprise.

• The defibrillation method is simple, however there exist written commands of defibrillators that explain it step-through-step.

• There are several gadgets for enhancing CPR however, handiest defibrillators (as of 2010) were discovered better than preferred CPR for an out-of-hospital cardiac arrest.