Generally speaking, no. However, there is always the exception. A person can be in V-Tach and still conscious (which happened to my brother-in-law). It would usually be obvious if a person is in distress with a heart issue in which case you would want to hook up the AED.
An AED is used to analyze the rhythm of the heart and determine whether it would be beneficial to the victim to administer electric shock. A conscious person suffering from minor heart palpitations will not get any benefit from an AED because you cannot administer electric shock to a conscious patient and the AED will simply tell you (at the end of its analysis) that "shock is not advised."
The AED pads should be attached as soon as possible to potentially help during a cardiac emergency. A person will follow the instructions of the AED and may require shocking the patient to reset the heart.
Unless the child is pulseless, HECK NO. Never put an AED on a conscious patient or a patient with a palpable pulse.
Do not use the AED if the person has a pulse.
The contraindications of the AED are:Is consciousIs breathingHas pulseLess than 8 years old or 55 pounds
The only way a conscious person can be shocked by an AED is if they are touching the person that is being shocked, or touching metal that the person being shocked is touching, or standing in a puddle of water that the person being shocked is in. AED's are designed to only shock unconscious and pulse less victims, they have built in sensors that analyze heart rhythms and only shock if no rhythms are present. They cannot distinguish the difference between the heart's electrical rhythms and the electrical signals that your brain sends your muscles. So if a person is breathing, thinking, or their heart is beating, then an AED attached to them will not function. However, the electricity of an AED can be conducted from a patient being shocked through direct contact, water, or metal to an unintentional second person. - Courtney EMT/CPR Instructor
Yes you should use a AED on a person that has a electrical shock injury.
The AED could pick up the heart rhythm of the person touching the victim and not shock when a shock is required.
You generally do not remove patches before applying the AED pads.
Yes. In general, though, the AED should be used anytime you think a person is having a heart attack. The AED will automatically decide whether to administer shocks.
Above the chest
You should first check to make sure the person is conscious by shaking their shoulders and saying "Sir/Ma'am, are you ok," a couple of times. After doing this with no response,send someone to contact 911 and to retrieve an AED (if it is needed), if there is anyone around. If no one is around contact 911 yourself. After providing location information to emergency services, begin the process of providing CPR. Source: First Aid and CPR/AED certified