After cardiac arrest, cerebral blood flow will be suddenly interrupted, loss of consciousness occurs in about 10 seconds, and irreversible damage to brain cells occurs after 4 minutes, and only patients who are rescued in time are likely to survive. Therefore, by seizing the precious golden 4 minutes and administering correct cardiopulmonary resuscitation (CPR), about 50% of the patients can be successfully resuscitated, and with the increase of time, the probability of resuscitation is reduced accordingly. The probability of resuscitation decreases with time.
The chances of survival can be greatly improved if someone is on the scene first with CPR and an AED before the arrival of medical emergency personnel.
Cardiopulmonary resuscitation
CPR (Cardiopulmonary resuscitation), or cardiopulmonary resuscitation after cardiac arrest, is known as the "world's number one life-saving technique". CPR refers to the technique of chest compressions and artificial respiration performed by paramedics at the scene of a cardiac arrest.
The green channel of life-saving "Chain of Survival"
Dialing the emergency number→Cardiopulmonary resuscitation→Defibrillation using AED→Medical monitoring and transportation→Admission to the hospital
CPR operation process
Premise: Assessing safety of the scene environment
1 Judging the consciousness
The first step is to use the hands of a person who is in cardiac arrest to perform chest compressions. /p>
Pat the patient's shoulders with both hands and ask loudly in both ears, "Hey! What's wrong with you?" Determine the patient's consciousness, taking care to tap and shout.
2 Check breathing
Observe the patient's chest rise and fall for 5~10 seconds (silently count 1001, 1002, 1003, 1004, 1005......1010) to check for breathing.
3 Call for help
Yell out, "Somebody! Someone here has fainted!"
Designate one person to call emergency services and report back the results
Designate one person to get an automated external defibrillator (AED)
Ask for assistance from those around you
4 Loosen collars and trouser bands
5 Chest cardiac compressions
Lay the patient down flat on their back on a firm, flat surface.
The site of compression is located in the lower one-half of the patient's sternum, and the root of the palm of one hand is positioned at the intersection of the midline of the sternum and the line between the two nipples.
The root of the palm of both hands overlap, ten fingers interlocked and cocked, two elbows straight, vertical downward force pressure 5-6 centimeters, after the pressure to relax, so that the thorax fully rebound. Use upper body strength to press hard 30 times (pressing frequency 100-120 times/minute), minimize the interruption of chest compressions.
6Open the airway
First, check the mouth for foreign objects, if any, remove them first. Then open the airway by tilting the head and lifting the chin.
7 Artificial respiration
Tightly pinch the patient's nose, tightly wrapped around the mouth, slowly and calmly blowing, blowing time of about one second, the chest can be lifted. Release the nose, let the chest fall, and repeat the action to blow a second time.
30 chest compressions + 2 artificial blowing
After five consecutive groups
Check whether the patient's consciousness and breathing have recovered
Check whether the patient's consciousness and breathing have recovered in 5 to 10 seconds. If not, continue CPR. If recovered, place the patient in the resuscitation position and wait for the ambulance to transfer to the hospital for further treatment.
AED (Automated?External?Defibrillators) Automatic External Defibrillator, also known as automatic external defibrillator, automatic shock device, automatic defibrillator, defibrillator. It is a portable medical device that diagnoses specific cardiac arrhythmias and delivers an electric shock to defibrillate the heart.
An AED is a medical device that can be used by laypeople to resuscitate patients in cardiac arrest. It is often used during cardiopulmonary resuscitation (CPR) and is effective in increasing the success rate of resuscitation.
The correct way to use AED
Note:
First, after turning on the power, be sure to carry out each step of the operation under the guidance of the AED's voice prompts, and do not operate ahead of time or operate sluggishly.
Second, because the AED needs to be discharged during the defibrillation process, do not touch the patient during use, and be sure to loudly remind onlookers to stay away from the patient to prevent electrocution.