Is the anesthesia mask inhaling oxygen or anesthesia?

anesthesia mask is usually used for general anesthesia. It has two main functions: to provide oxygen; Administer anesthesia.

General anesthesia includes intravenous anesthesia, inhalation gas anesthesia and intravenous inhalation combined anesthesia. Intravenous anesthesia refers to anesthesia through intravenous drug delivery; Inhaled gas anesthesia means that the doctor directly holds the patient's nose and mouth tightly with a mask and inhales anesthetic drugs before being anesthetized. Intravenous inhalation anesthesia is the combination of the above two methods in the entire anesthesia process. Adult anesthesia is usually administered intravenously, while pediatric anesthesia is mostly administered by inhalation gas.

An anesthesia mask is used to provide a high concentration of oxygen for pre-oxygenation during the transition from consciousness to anesthesia, known as induction.

After intravenous anesthesia, patients lose consciousness and cannot breathe while medical staff intubate the patient to establish an airway. Sufficient oxygen should be provided to the patient through anesthesia mask to increase the oxygen content in the lungs, so as to provide sufficient time for the implementation of tracheal intubation under general anesthesia and ensure the safety of the patient in the anesthesia induction stage.

After the airway is established and before surgery, during the maintenance of anesthesia, the anesthesia mask will no longer simply provide oxygen, but will be combined with an inhaled anesthetic.

Therefore, at present, most general anesthesia uses intravenous inhalation combined anesthesia. Before anesthesia, anesthesia mask is required to provide sufficient oxygen, while during surgery, anesthesia mask is required to provide high concentration of oxygen and anesthesia, which can be breathed into the patient's body to achieve the purpose of anesthetic administration.

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