In chest defibrillation, where should the two electrode plates be placed?

When using a defibrillator, there are two types of electrode plates. One is called the anteroposterior position, in which an electrode plate is placed in the subscapular region of the back; The other piece is placed on the left sternal border 3 and 4 at the level of the intercostal space.

The other is a plate of electrodes placed on the right edge of the sternum2 3 intercostal space (bottom of the heart). The other piece is placed in the 5th intercostal space (apex) within the anterior line of the left axilla. This method is quick and convenient, and is suitable for emergency defibrillation. The distance between the two electrode plates should not be l0cm.

Generally, conventional electrode plates (used for defibrillation) are placed in the apical-fundar placement method in front of the chest, which is the method mentioned later. As for the question you mentioned later, it's not the same for professional and non-professional first responders....But I guessed correctly that you should be asking for this multiple-choice question according to the standards of a professional first responder, then you should choose E for this question. That is, the most important criterion for judging is loss of consciousness and loss of aortic pulses (in fact, it is not only the carotid artery, but the loss of other aortic pulses can also be illustrative, but the carotid artery is indeed the most commonly used, and the carotid artery can largely reflect the blood supply to the brain).

Other items, such as dilated pupils, appear later than the pulse disappears; As for respiratory arrest, some patients with sudden cardiac death do not stop breathing immediately after cardiac arrest, but have abnormal respiratory rhythms, and respiratory arrest is also later than the disappearance of pulse; Blood pressure measurement is not as convenient as pulse measurement, and blood pressure is not measurable, and sometimes it does not represent cardiac arrest; The paleness of the face and cyanosis of the lips does not directly indicate that the heart has stopped.

At best, it can only indicate the presence of hypoxia....Therefore, after a comprehensive analysis, the most important thing for the early diagnosis of patients with cardiac arrest (i.e., sudden cardiac death) is consciousness and pulse....Of course, if you are not a professional, you still have to check your breathing because of the difficulty of checking your pulseFYI....

Anterior lateral placement is generally used, with the apical electrode plate placed at the junction of the fifth intercostal space and the midaxillary line on the left side, and the sternal electrode.

The plate is placed in the second intercostal space at the right sternal border.

Defibrillation is a method in which a certain amount of electrical current hits the heart so that ventricular fibrillation stops. It is an effective method of ventricular fibrillation.

Today, direct current defibrillation is the most widely used. The original defibrillator used industrial alternating current to perform defibrillation directly.

Defibrillators are often caused by electric shock, so in addition to internal defibrillation (ventricular fibrillation) with alternating current during cardiac surgery, direct current defibrillation is generally used.

Cardioversion is a method of using electrical energy to convert ectopic tachyarrhythmias into sinus rhythms, which was first used to eliminate them.

Ventricular fibrillation, so it is also called defibrillation. Cardiac cardioversion device is a device used for cardioversion, which is commonly used at present.

The electrical cardioverter is composed of electrodes, defibrillation, synchronous triggering, ECG oscilloscope, power supply and other parts, and the electrical power can be reached.

200～360j。Electrical defibrillation is a necessary, effective and important rescue measure in cardiac arrest rescue.

It is suitable for reversal of various ectopic tachyarrhythmias, especially those who are ineffective in drugs. Conversion of ventricular fibrillation, atrial fibrillation, and flutter, electrical defibrillation may be preferred; In the case of cardioventricular and supraventricular tachycardia, drugs or other ** are often used first, which are ineffective or accompanied by significant blood.

This method shall be applied when there is a fluid force disorder; Ectopic tachyarrhythmias of unknown nature or complicated by pre-excitation syndrome are often used with drugs.

If it is difficult, synchronous electrical cardioversion** is appropriate. Electrical cardioversion**Ectopic tachyarrhythmias, immediate cardioversion, success rate in ventricular heart.

Tachycardia and atrial flutter are almost 100%, while supraventricular tachycardia and atrial fibrillation are around 80% and 90%, respectively.

During cardiopulmonary resuscitation, the first aid provider should continue chest compressions and ventilation after defibrillation, and after 5 cycles of cardiopulmonary resuscitation, the heart rhythm can be analyzed again after about 2 minutes, and defibrillation should be performed again if necessary. Pay close attention to the patient's vital signs, and compressions can be stopped if a regular carotid pulse occurs.

Cardiac arrest patients, after electric shock, may recover the heartbeat, or may not recover the heartbeat, then at this time the cardiopulmonary resuscitation implementer should continue to continue to perform chest compressions, because the defibrillator is mainly aimed at ventricular fibrillation, if the patient's heartbeat does not respond, the electrocardiogram shows a straight line or electromechanical separation, should continue to do cardiopulmonary resuscitation, until the patient has a significant heartbeat, blood pressure recovery. <>

Answer]: A In extrathoracic defibrillation, the electrode plate is placed correctly on the left side at the intersection of the 5th intercostal space and the right side of the 2nd and 3rd intercostal space.

Answer]: c Placement of the external defibrillator electrode plate: The negative electrode is placed in the second intercostal space at the right sternal border, and the other electrode is placed at the apex.

a.Upper bBottom.

c.Left DRight.

Check the answer analysis [correct answer] a

Position of the electrode plate during defibrillation.

Place the electrode plate in the correct position on the chest: avoid placing it directly on the film or other implanted device. The electrode plates are placed in the following locations:

1) Upper-inferior position: The electrode plate marked with sternum is placed at the upper end of the sternum and under the right clavicle; The electrode plate labeled apex (apex) is placed on the left axillary line of the left **.

2) Anterior-posterior position: the electrode plate marked with the sternum is placed at the tip of the anterior chest; The electrode plate marked with the tip of the heart is placed on the back of the slippery leak, under the left shoulder blade.

Comparative knowledge points: Electrode plate placement during synchronous electrical cardioversion.

Position the electrode plate correctly, confirm that it is in the correct position, and that it is in good contact with the chest wall. For patients with pacemakers, do not place the electrode plates directly on the pacemaker. Commonly used electrode plate flogging locations include:

1) Upper-inferior position: Place the sternal electrode plate on the right edge of the sternum under the right clavicle; The apical electrode plate is placed between the left ** and the midaxillary line. In female patients, the apical electrode should be placed in the left clavicle.

Between the fifth and sixth intercostal spaces and the midaxillary line.

2) Anterior-posterior position: The anterior electrode is placed in the precordial area, and the posterior electrode is placed behind the heart, at the inferior corner of the left scapular line.

In upper-inferior defibrillation, electrode plates labeled with the sternum are placed on the sternum ( )aUpper bLower end c

Left DRight View Answer Analysis [Correct Answer] A [Answer Analysis] When defibrillation, place the electrode plate in the correct position on the chest: avoid placing it directly on the film or other implanted devices.

I don't remember the details clearly, it should be placed at the apex and bottom of the heart, one is on the upper right, and the other is the lower left position of the apex to avoid the position of ECG monitoring on the chest.