what technique is used to open the airway of an unresponsive victim

An AED, or automated external defibrillator, is a device that has the power to detect and treat, through electrical free energy, the lethal arrhythmias known as ventricular fibrillation and ventricular tachycardia. These rhythms are a common cause of sudden cardiac arrest.

Ventricular fibrillation is a status in which the lower chambers of the heart, the ventricles, quiver in an unorganized fashion, which renders them incapable of pumping claret to the rest of the trunk. Untreated, ventricular fibrillation rapidly causes cardiac arrest. Ventricular tachycardia is a rapid rhythm also originating in the ventricles. In ventricular tachycardia, the ventricles contract and then chop-chop, albeit in a somewhat organized fashion, that inadequate claret menstruation is produced. Ventricular tachycardia often precedes ventricular fibrillation. Both rhythms are lethal if not treated.

An AED sends electrical energy (a 'shock') through the heart, which stuns the middle and allows the normal pacemaker of the heart, normally located in the right atrium, to accept over and restore a normal center rhythm.

Early on defibrillation is key to survival in cardiac abort. For each infinitesimal that defibrillation is delayed, the run a risk of survival is reduced by 10%. (after 10 minutes, few people are successfully resuscitated.)

Early defibrillation can increase survival rates to greater than 50%. Rescuers should immediately begin chest compressions, and use the AED equally soon as information technology is available and ready to employ.

AEDs tin can exist found wherever crowds of people gather- swimming pools, airports, malls, sporting arenas, schools, hotels…More than and more businesses are too investing in these life-saving machines. In some communities, individual AED owners are registering their AEDs with ambulance dispatch, so that they tin be hands located past bystanders when needed. Go far a point to learn where the AEDs in your neighborhood or town are located- y'all never know when you might need one!

AEDs have been designed to be extremely "user friendly". All you need to do as a rescuer is turn on the automobile (the nearly important footstep) and listen every bit the machine guides you through the steps to use the AED safely and finer. Although at that place are many brands of AEDs on the market, they all piece of work in a similar fashion and are designed to be used by lay rescuers.

When an AED becomes available (i.e., when you lot or some other rescuer have retrieved it), place it at the victim'south side, closest to the rescuer who will operate information technology. In this way, the other rescuer can continue performing CPR until the AED is gear up to analyze and evangelize a shock (if needed).

At that place are 4 universal steps to using any AED. These will be highlighted in the following list of steps so they are easily recognizable.

The steps to employ an AED are equally follows:

1. Turn on the machine. This is the about important pace- turning on the machine will enable the AED unit to guide you through the next steps. To turn on the AED, open the top of the carrying example and button the ON button. Note: some models will plough on automatically when you lift the hat of the conveying case.
2. Adhere AED pads to the victim'due south blank chest. Expose the patient's chest. Dry information technology off if wet, shave excessive hair if possible. Use adult pads for victims who are eight years of age or older. Peel off the adhesive backing. Place one pad on the upper right chest only beneath the collarbone. Identify the other pad on the patient's lower left ribcage, a couple of centimeters beneath the armpit. Some pads are marked- in that location will be a red heart on the pad that is to exist placed on the victim'southward left side (the heart side).
   Press pads firmly onto the patient's chest. So attach the connecting cables to the AED unit. Note: some cables will come preconnected.
3. Analyze the rhythm. When the AED unit instructs you to, CLEAR the victim while the machine is analyzing the victim'due south heart rhythm. This means y'all should ensure that no 1 is touching the victim, including yourself. The rescuer performing chest compressions or giving breaths volition need to stop at this betoken. Note: some AEDs will begin to analyze the victim's rhythm independently; for others, you will need to push button the Analyze button. Analyzing the victim's rhythm will take up to 10 seconds, so don't exist alarmed past this.
4. Push to stupor. If a shock is advised, the machine will conspicuously state "Stupor ADVISED, STAND Clear". You should ensure that no one is touching the victim, including yourself. Yous need to look around to make sure no one is touching the victim'south body while stating "CLEAR" or some similar message that warns others a stupor is to be delivered. In one case you are certain that no one is touching the victim, push the Daze push button. You will discover that the victim's muscles contract strongly.

• If a shock is not necessary (the rhythm is non ventricular fibrillation or pulseless ventricular tachycardia), the AED will state NO Shock ADVISED and tell you to resume CPR
• Afterwards approximately 5 cycles of compressions and ventilations, or 2 minutes of CPR, the AED will instruct you to repeat steps iii and 4- analyze the rhythm and push button to shock if the rhythm requires a shock and the AED instructs you to do so.
• Continue CPR alternating with analysis of the rhythm until assist arrives (i.e. Ems).

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Source: https://www.nationalcprassociation.com/cpr-aed-study-guide-part-2/

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