What are the golden four minutes of first aid and why are they important?

**4 minutes, in fact, represents 4 minutes after cardiac arrest, is the tolerance limit of our brain cells to hypoxia, after four minutes, brain cells will appear irreversible damage, so after 4 minutes, if the person has not been saved, then the person will soon transition to biological death, and the probability of death will increase exponentially for every minute delayed, because to say anywayBefore a sudden death patient, timely and effective cardiopulmonary resuscitation within 4 minutes can have the greatest hope of life and truly let the patient escape the clutches of death.

ActuallyWhen there is a sudden situation of sudden death around us,First aid skills are not just available to medical personnelAccording to relevant data, it shows that nearly 80% of sudden death cases in our country occur outside the hospital, thereforeWhen encountering a patient who dies suddenly, the first rescuer is actually the public, and we still hope that everyone can learn first aid skills and truly master the standard first aid knowledge.

usFor every second saved, there is more hope for lifeIt is necessary to ensure ** rescue time, one will not only lead to **, 4 minutes when the first aid is carried out,Start with CPR, first we want toDetermine the safety of the site, and secondarilyDetermine if the patient is responding and is breathing normallyChest compressions, if necessary, should be started immediately after the decision to call 120 Ambulance**, where necessary, with rescue breaths available. Anyway**The 4-minute first aid method is very simple, it depends on whether we have the time or not.

CPR is known as the "hand of God" and is enough to save a person's life in a critical momentAlthough many urban public places have been equipped with automatic external defibrillators, the promotion has just begun, and there are very few people who will use themWe need to take precautions and learn more first aid skills, which is to save others and ourselves.

The patient can be saved in these 4 minutes, and the patient's life can be saved in this way in these 4 minutes, which is very good for the patient and can reunite a family.

This is because the degree of hypoxia received by the brain is four minutes, and if it is more than ten minutes, the brain will be damaged, and the possibility of rescue will be very small.

That is to say, within 4 minutes when the patient is about to fall into a coma or die, it is the first 4 minutes of first aid, because it is possible to revive the patient in these 4 minutes.

Because these 4 minutes are very important, if you can do these 4 minutes well, you can save people well.

4 minutes.

In medicine, the "** four minutes" is the best rescue time for cardiopulmonary resuscitation, that is, the best time for pre-hospital first aid. When a person's heart beats and breathing stops suddenly, if the basic life support cannot be established within 4 to 8 minutes to ensure the basic blood oxygen of the body's vital organs**, it will lead to brain death and turn the person into a vegetative state. In severe cases, it can even be life-threatening.

If CPR can be performed within 4 minutes of cardiac arrest and further life support within 8 minutes, the patient's survival rate will increase to 43%. In particular, the timely use of CPR within "**4 minutes" will be more effective in helping patients get out of danger.

Pay attention to the aura of intracerebral hemorrhage.

1. If you suddenly feel numbness, weakness, inconvenience in moving on one side of your body, falling objects in your hand, crooked mouth, drooling, unsteady walking, etc., you should be vigilant.

2. If you suddenly feel dizzy, the surrounding scenery rotates, you can't stand unsteadily or even faint, etc., you need to call 120 quickly.

3. When the blood vessels in our brain rupture and bleed, because the intracranial pressure increases, and the blood vessels are compressed, they may also be closed for self-protection in a short period of time and will not bleed again, but this is only temporary. If the mood swings are too great, and if you exercise, it is possible to bleed again.

The life-saving time is less than 4 minutes.

The length of time between cardiac arrest and biological death depends on the nature of the underlying condition and the time between cardiac arrest and the onset of resuscitation. After cardiac arrest, most patients will develop irreversible brain damage within four to six minutes, followed by a transition to biological death within a few minutes, so CPR** time is within 4 minutes, and the sooner the better.

The time of "** life-saving time" is:

**The rescue time is less than 4 minutes.

At normal room temperature, irreversible damage to brain cells will occur after 4 minutes of cardiac arrest, and if the time is more than 10 minutes, even if the patient is rescued, it may be brain dead, that is, vegetative. Therefore, there is a saying of "** four minutes" in the first aid of sudden cardiac death.

The most serious case in cardiac emergency is cardiac arrest, that is, the sudden termination of the ejection function of the heart, resulting in severe ischemia and hypoxia of vital organs, which will lead to the termination of life if not intervened in time. This unexpected and sudden death is also known as sudden death in medical terms.

The total number of sudden cardiac deaths in China reaches 540,000 per year, the highest in the world, and about 1,500 people die from cardiac arrest every day, and more than 60% of them occur outside the hospital. For patients with cardiac arrest, half of those who are resuscitated within 4 minutes may be resuscitated, also known as "**4 minutes".

A first-aid expert from the Municipal Red Cross Society told reporters that the first 4 minutes after the occurrence of injuries and illnesses in medicine are called the "best time" for first aid, and if more people can master scientific rescue knowledge, they will undoubtedly seize the opportunity to save lives.

According to statistics, about 3.5 million people die every year in the world due to injuries caused by accidents, and accidents and violence in daily life require 100 to 500 times more people to be injured. The on-site first aid skills can be used for situations such as traffic accident hemorrhage, shock, electric shock, drowning, etc., if cardiopulmonary resuscitation can be carried out in time within 4 minutes, it can generally be saved, this time is called the "first time" of ambulance; If it is more than 8 minutes, the success rate of the ambulance is only 5%, and more than 16 minutes can not be saved, and the hospital ambulance is out of the car within 5 minutes after receiving **, according to the medical staff arrive after 15 minutes, in most cases the best time to rescue patients will be missed.

First aid experts remind the public that an ordinary person can master the common sense and basic operation skills of on-site rescue after 2-3 days of training. At present, the Red Cross Society of Jinan has carried out health care training for all levels of society, and has held more than 900 popular training courses and lectures, training more than 120,000 people.

So, the ambulance time is 4 minutes.

The time of "** life-saving time" is: