Why should an anesthesiologist put a mask on the patient's nose and mouth before operation?

Many patients think that the mask they gave them before the operation is anesthetic, and they fall asleep after drinking it.

In fact, for general anesthesia in children, this mask is indeed an inhalation anesthetic. Because the child does not cooperate with the nurse's needle after entering the operating room, he is first put to sleep with inhalation anesthetic, and then inserted with infusion needle. At this time, the anesthesiologist gives analgesics, muscle relaxants and other anesthetics through the infusion pipeline.

For children, adults and the elderly who can cooperate, this mask really gives oxygen to patients before operation.

And why did you fall asleep after a few drinks?

Because after you inhale for a while, the anesthesiologist will push the medicine through the infusion line of your needle, and you will fall asleep in a short time after the intravenous anesthetic is pushed into your body. That's why you mistakenly think that you fell asleep because of the "anesthetic" in the mask.

During the operation, the mask will be replaced by tracheal intubation or laryngeal mask, inserted into your respiratory tract, continuously supplied with oxygen and output inhalation anesthetic for anesthesia.

Some patients will say, I don't lack oxygen, why should I take oxygen?

Because in normal times, some of your lungs are "not working", and this part of your lungs contains no oxygen or has a low oxygen content. In daily life, you can rely on other normal lungs to meet your oxygen needs.

But after general anesthesia, your breathing has stopped, and the anesthesiologist needs to intubate you and connect the ventilator within a few minutes after your breathing has stopped. Inhaling high concentration of oxygen before operation can improve the oxygen reserve in the lungs. When you have difficulty in intubation (such as abnormal respiratory tract), this part of the "re-working" oxygenated lung can buy you valuable time.

Clinically, almost every patient under general anesthesia should put a mask on his mouth and nose before anesthesia. This is mainly to maintain your normal oxygen, and replenishment is a very important step. The inside of the mask contains high concentration of oxygen.

Everyone must understand the whole process.

First, the patient is lying in a hospital bed. If the anesthesiologist wants to give you general anesthesia, there must be an induction process before, which is a preparation process in layman's terms. In this preparation process, it is very important to keep your vital signs stable, so the most basic thing is to keep your breathing stable. At this time, inhaling oxygen through the nose and mouth is the most common treatment.

However, there is a high concentration of oxygen coming out of this mask, which can effectively maintain the oxygen supply of the human body at this time and not be in a state of ischemia and hypoxia.

Secondly, we must understand that while an anesthesiologist puts on an oxygen mask for you, another anesthesiologist is pushing drugs through your veins. These drugs are our real narcotic drugs. Moreover, these drugs really play the role of anesthesia, rather than wearing an oxygen mask.

Finally, a series of tracheal intubation operations were performed. You know, once the anesthesia is formed, the whole body muscles relax, and then the tongue will fall back. If the anesthesiologist does not grasp the actual situation properly, the tongue can easily interfere with normal breathing. Therefore, it is very necessary to maintain high concentration of oxygen supply before and after anesthesia, and tracheal intubation is also very necessary to maintain a normal breathing path and reduce the risk of ischemia and hypoxia.

So in general, the main purpose of wearing a mask is to keep your oxygen supply and reduce the harm caused by ischemia and hypoxia. And when you are in a coma, another anesthesiologist pushes intravenous anesthetics, which is the fundamental key factor.

I wish you all good health!

Hello, as a surgeon who goes in and out of the operating room every day, let me answer.

Why does the anesthesiologist put a mask on the patient's nose and mouth? Will he inhale the anesthetic and put the patient to sleep?

The answer is no, this situation is mainly seen during general anesthesia. You put a mask on the patient's nose and mouth, and then let the patient take a deep breath. At this time, it is not anesthetic, but high concentration of oxygen. Why?

Because the anesthesiologist will give you intravenous anesthesia for a while, and after a few seconds, you will fall asleep immediately, unconscious and not breathing. At this time, the anesthesiologist will intubate your trachea, insert a tube in your trachea, and then connect a ventilator to help you breathe. Because patients under general anesthesia do not breathe spontaneously, they need to rely on ventilators. The period from falling asleep to intubation by anesthesiologist is called anesthesia induction period.

Having said that, you may still not understand why you should inhale high concentration oxygen. This is mainly to increase the oxygen content in your lungs, because you can't breathe during these few minutes of tracheal intubation, and the outside world can't give you oxygen, so you have to rely on the oxygen stored in your own lungs.

When tracheal intubation is successful, until the end of your operation, this period is called anesthesia maintenance period. At this time, you will not only inhale oxygen, but also inhale the anesthetic in the anesthesia machine. At present, general anesthesia is generally combined with intravenous anesthesia and respiratory anesthesia, which is called compound anesthesia.

So, before general anesthesia, give you a mask to let you breathe more oxygen. At this time, you just need to take a deep breath.

I hope my answer will make you understand. Please leave a message for consultation. More medical science, please pay attention to me.

Two days ago, I gave a beautiful young girl general anesthesia for gynecological surgery, and the girl had a great opinion of me. What do you think? There is an answer after the text.

Most masks have a taste.

The general anesthesia rate of most 3A hospitals is over 50%, and many hospitals reach over 70%. The general anesthesia rate in tertiary hospitals will be higher. Generally speaking, sedatives, analgesics and muscle relaxants are used in general anesthesia. These three drugs will affect breathing to some extent, so it is necessary to evaluate breathing before general anesthesia.

After tracheal intubation

After the patient enters the operating room, the anesthesiologist should first choose the appropriate mask for the patient to try. Generally, masks are small, medium, large and extra large. Small for babies, medium for children, large for adults and extra large for obese patients. At present, the masks used in clinic have a heavy plastic smell, and many patients refuse this smell. Some patients even hold their breath after wearing a mask, which is more common in children, women and the elderly. Some clinical general anesthesia may not need a mask, such as patients with mask difficulty (I have seen patients without chin, so I can't use a mask), and obese patients have difficulty in giving oxygen through a mask, so such patients may need conscious intubation (another article).

Generally speaking, there are two processes to fasten the mask. The first process is nitrogen removal and oxygen supply, that is, the patient breathes spontaneously for about 5 minutes after fastening the mask, which increases the oxygen reserve of the patient and improves the ability to resist accidents; The second process is oxygen induction under general anesthesia, pure vein induction, and there is only oxygen in the mask; When using inhalation anesthetics, there are both oxygen and inhalation anesthetics in the mask. At present, rapid induction is mostly used in clinic, so everyone may lose consciousness in a few tens of seconds, and insert tracheal tube or laryngeal mask in about 5 minutes. Losing consciousness so quickly is not the powerful effect of the mask, but the powerful effect of the synergistic effect of various anesthetics. General anesthesia for heart surgery and cardiopulmonary bypass

Anesthesia mask will also play a great role when anesthesia wakes up and after tracheal catheter or laryngeal mask is removed. Clinically, every department should be equipped with a simple breathing bag. A simple breathing bag with a mask can quickly give patients simple airway management, which may save some lives.

Let's go back to the beauty point of view. She is very resistant to the smell of the mask, so she can't help holding her breath after wearing it. The smell of the mask is her problem. Therefore, I hope that mask manufacturers can produce sweet masks. If you can sleep in the sweet taste, this experience should be better.

What did everyone say? What's wrong with general anesthesia?

Friends who have done general anesthesia remember a doctor who put a mask on his nose and mouth before surgery and then fell asleep? Do you want to know why the anesthesiologist put a mask on himself? What's in this mask? Why did you fall asleep? The following Dr. Xiaohua will tell you what is going on!

What's in the mask? Why did you fall asleep? The so-called general anesthesia is general anesthesia, and the gas in the mask buckled before general adult general anesthesia is actually oxygen. Children who can't cooperate with anesthesiologists usually use masks to inhale anesthetics. The child fell asleep after taking the anesthetic.

Why do you fall asleep after taking oxygen? In fact, adult general anesthesia is to inject anesthetic drugs through indwelling needles in arms or hands, and then patients can fall asleep. Generally, when we put on a mask to breathe oxygen, we still keep the needle to push the medicine. If patients can pay attention to it, they will find this step! And there is an anesthetic commonly used to make the injection site painful. Many patients will have this reaction during anesthesia, which is a normal phenomenon.

Inhalation anesthetics have irritating smell and are generally not used by adults before operation, because they may leak out and be inhaled by staff. Only children who can't cooperate with indwelling needles will inhale some inhaled anesthetics before going to sleep!

Why should I wear a mask on my nose and mouth before the operation? General anesthesia drugs are mainly divided into sedatives, analgesics and muscle relaxants. Among them, sedatives and analgesics have the effects of inhibiting respiration and circulation. Muscle relaxants, as the name implies, are drugs that relax muscles, including respiratory muscles. At this time, the patient does not breathe spontaneously, so it is necessary to connect the anesthesia machine (also a ventilator) with the patient's trachea through the tracheal catheter for ventilation. On the one hand, the use of muscle relaxants is necessary for surgery to maintain good muscle relaxation during surgery; On the other hand, it is convenient for tracheal intubation. )

During tracheal intubation, ventilation cannot be performed, and the patient has not breathed for about a minute, so preoperative oxygen inhalation is also called pre-oxygen inhalation, in order to ensure that the patient will not have hypoxemia during tracheal intubation.

Now do you understand why you should wear a mask before anesthesia? Do you think anesthesia is not so mysterious? Welcome to discuss and share experiences!

Ma Zhi Sugar is here. Maybe some of our friends have had surgery. If general anesthesia is used during the operation, there must be a feeling that before anesthesia, the anesthesiologist will put a mask on your nose and mouth, and then you will fall asleep in a minute or so, and then when you wake up, the operation has been completed. The process is simple, but many friends may not understand what the mask before anesthesia is for. Is it because there are inhaled narcotic drugs in the mask? Suck to sleep? The answer is definitely not, so let Tang Xiao decrypt it for everyone.

First, let's decipher how our friend fell asleep under anesthesia. Actually, you didn't fall asleep because you inhaled narcotics. Generally, there is no anesthetic in the mask (of course, there can be, usually when doing inhalation anesthesia), usually oxygen. So why do you fall asleep when you take oxygen? During anesthesia, there are usually two anesthesiologists, one will put on a mask to let you breathe oxygen, and the other will give anesthetic drugs into your intravenous needle to make you fall asleep in a short time. So I drugged you unnoticed, and you just thought the doctor only let me breathe some oxygen.

So, what is the reason for the mask? Must I deduct it? The answer is, it must be deducted! In fact, if you do general anesthesia, the anesthesiologist will give you a very important operation-tracheal intubation while you are asleep. What's the use of tracheal intubation? When the anesthetic is injected, the patient's lungs will gradually stop working, which means that the patient will not breathe. Therefore, the human body will be deprived of oxygen during the operation, and it is necessary to use a ventilator to ventilate the patient and deliver the required oxygen. Then the ventilator and the airway of human body are established through tracheal intubation, so tracheal intubation is a necessary operation of general anesthesia. So what is the connection between tracheal intubation and mask buckle? As we all know, when we inhale air, the inhaled oxygen concentration is only about 2 1%, most of which is nitrogen, so in order to leave time for our tracheal intubation, the oxygen concentration in our body needs to be higher than usual, so we can inhale 100% oxygen before anesthesia to improve the oxygen content in our body. Only in this way, when we intubate the trachea, the human body will not be deprived of oxygen because there is no ventilation. We call it "oxygen supply and nitrogen removal" clinically. Therefore, it is necessary for anesthesiologists to put a mask on the patient's nose and mouth before operation.

By: pants

Wearing a mask is the basic skill of anesthesiologists, but why to wear a mask for patients may be a doubt in many patients' hearts.

In fact, I have heard many patients who have been detained with masks say that masks stink and smell too uncomfortable. There are many such situations. Indeed, because of the problems of materials and workmanship, the smell is inevitable, so there is really no way, more or less there are some smells.

Many people may also be nervous when something is put on their face to cover their nose and mouth. Therefore, when the patient is awake, we usually put the mask on the patient's face gently without fastening it tightly. Only after the medicine is given, the patient's breath is knocked off and the mask is tightly buckled in a professional way.

Back to the topic, why do you want to buckle the mask? There are two main reasons.

1. Deoxygenation and denitrification

Before anesthesia, that is, when the patient is awake, we will give oxygen with a mask, and it is 100% pure oxygen, and the time is usually three to five minutes. The purpose of this time is to expel nitrogen from the patient's body and ensure that the alveoli are all pure oxygen, which can buy us an unpredictable rescue time of about five minutes after anesthesia. So, this is for safety.

ventilate

A transitional ventilation mode from anesthesia administration to non-insertion of tracheal catheter. After taking the medicine, the patient doesn't breathe very fast, but he needs to breathe through the mask for a few minutes before the intubation time. When the medicine takes effect and can be intubated, he won't need a mask. In fact, you can always wear a mask for ventilation, but that is too tiring and wasteful. If you have a ventilator, you don't need to use that way.

I hope the above is helpful to you, thank you.

We usually see on TV that some people put masks on their faces when they have surgery. What is the use of this mask? Is it to let the patient inhale anesthetic to sleep?

In fact, this mask is not an anesthetic, but a high concentration of oxygen, which is often used when patients need general anesthesia.

This is because when the anesthesiologist gives you general anesthesia, you will fall into an unconscious state and will not breathe spontaneously at this time. The doctor needs to insert a tube into your trachea.

Then connect the ventilator so that you can continue breathing.

But you can't breathe before inserting this tube, so you need to inhale high concentration oxygen before anesthesia.

This will store oxygen in your lungs in advance. However, after tracheal intubation is completed, some anesthetic will still be released in this mask. Put you under anesthesia. Are you clear now?

Because some anesthetized patients can't breathe spontaneously, they need oxygen masks.

I haven't been to the operating room. I don't know what's going on [covering my face] [covering my face]