What are the periods of anesthesia?
When the surgery ends, the anesthesiologist will stop the use of narcotic drugs, the patient enters the anesthesia recovery period. With the patient's metabolism of narcotic drugs in the body, the concentration of narcotic drugs gradually reduced. When the concentration of narcotic drugs to a certain extent, the patient can restore spontaneous breathing, awareness will be sober, this time the anesthesiologist will pull out the tracheal tube, continue to give the patient mask oxygen, and remove the oral secretions. When the patient's spontaneous breathing is well recovered, the consciousness is completely awake, the ability to speak is good and the vital signs are smooth, that is, when the anesthesia is reached, the ward can be returned to the ward.
Then enter the anesthesia maintenance state, anesthesiologists through the anesthesia machine to the patient inhaled anesthesia gas, or through intravenous infusion of narcotic drugs, so that patients continue to be in anesthesia. At this point you can start the operation. The length of the entire anesthesia maintenance time depends on the length of the operation time. Surgery for a long time, anesthesia to maintain a long time; short operation time, anesthesia maintenance time is short.
General anesthesia is divided into anesthesia induction, anesthesia maintenance and anesthesia awakening three stages. The so-called anesthesia induction, is to make people from sleep to sleep state. Patients into the operating room, the first open by the nurses intravenous access (that is, acupuncture infusion), anesthesia doctors connected ECG, blood pressure, blood oxygen saturation monitoring, mask oxygen. Then the anesthesiologist can begin anesthesia induction. The anesthesiologist will give the patient intravenous anesthesia or inhalation of anesthetic gas, the patient after 3 to 5 minutes after the treatment will disappear, from the sober into the sleep state. In the general state of anesthesia, because there is no sense of muscle relaxation, the patient lost the power of breathing, spontaneous breathing will usually disappear, so the patient into the general anesthesia state, the anesthesiologist will be tracheal intubation operation, Tube device with the aid of an endotracheal tube through the patient's mouth or nasal cavity into the patient's trachea, the other end of the tracheal tube connected to the anesthesia machine, through the anesthesia machine through the tracheal tube to the patient delivery of oxygen to help patients breathe.
