According to experts, 4 minutes after cardiac arrest is called "golden 4 minutes". If effective cardiopulmonary resuscitation and defibrillation are carried out within 4 minutes (usually with the help of AED), the survival rate of patients can be significantly improved.
What do experts think of AED? How to use it? Today, I will take you to unveil the "mystery" of AED.
First of all: What is an AED?
AED is a portable medical device, whose full name is automated external defibrillator. Can automatically analyze the electrocardiogram of patients with cardiac arrest and respiratory arrest, and give electric shock when defibrillation (electric shock) is needed. Non-professional medical staff can also use it to rescue patients with sudden cardiac death.
Second: Under what circumstances do you need to use AED?
This device is specially designed for people who can't use it After starting it, every step has a voice prompt, telling you the steps and processes to use.
Simply put, the adaptation symptom of AED is ventricular fibrillation, which will not shock the injured person who has no heart rate and the ECG is horizontal (that is, the heart has completely stopped).
Ventricular fibrillation, referred to as ventricular fibrillation, is a series of extremely rapid and ineffective fatal and irregular ventricular contractions, which belong to arrhythmia. At this point, even if the heart doesn't stop beating completely, it loses its ability to pump blood effectively. Within a few seconds, the patient will lose consciousness because of insufficient blood supply to the brain. If it is not treated in time, it will cause irreversible damage to brain tissue due to hypoxia for more than 5 minutes, and then it will die soon.
AED can apply intensive current in a very short time, and stimulate the heart by electric shock, so as to restore its state to normal beating state, which is called defibrillation.
According to the statistical data of 20 18 of the fire department of Wa province, Japan, using AED can improve the patient's life-saving rate to 53.5%, which is 6 times higher than calling an ambulance only and 3 times higher than just doing cardiac compression.
AED can greatly improve the survival rate of patients.
Third: How to use AED?
If someone faints in public, we can follow the following steps to give them first aid:
1, please shout, clap your shoulders, and make sure that the person who fell to the ground is still conscious.
2. If there is no response, please call 120 immediately and call someone nearby loudly to find the nearest AED instrument.
3. Check whether there is breathing action in the chest and abdomen of the person who fell to the ground.
4. If the person who falls to the ground doesn't breathe or breathe abnormally, please immediately perform cardiac compression (chest compression) and don't stop.
5. After the 5.AED arrives, please expose your chest and attach electrode pads according to the instructions. Remove the metal from the person who fell to the ground to avoid any protrusions, such as pacemakers; If the chest is wet, please wipe off the water stains quickly and attach the electrode pads.
6. Follow the voice instruction of AED. When AED analyzes ECG, please follow the voice instructions and stay away from the person who falls to the ground (if someone touches the body, ECG analysis may not be carried out correctly).
7. When the voice command of AED indicates that electric shock is needed, please make sure that no one touches the body of the person who fell to the ground.
8. Press the electric shock button.
9. Immediately after the electric shock, connect the AED electrode patch and press the heart again.
10 After another 2 minutes, AED will automatically judge whether to apply electric shock again and send out voice instructions.
1 1. Wait for the ambulance.
In order to facilitate memory, it can also be simplified into three steps:
1, call 120 quickly, and ask people around you to help bring the nearby AED; ;
2, before the arrival of the AED, do not interrupt the heart compression;
3. After the AED arrives, use the AED according to the voice prompt.
Fourth: How to find the nearby AED equipment?
Most mainstream map navigation software on the market, such as Tencent Map, Gaode Map and Baidu Map, can also be found. Open the map navigation software-search for "AED" to view it.
Ok, that's all for today.
We are Lao Xiaole, helping the elderly to keep up with the new era of science and technology! I wish you health and success!