How long does it take to take oxygen after surgery, and why do I need oxygen after surgery?

Oxygen inhalation after surgery is to promote better recovery of the patient, and there is no specific time to inhale, and the time and concentration of oxygen should be determined according to the specific condition of the patient. For example, after local anesthesia surgery, the patient may not need oxygen, and if it is after general anesthesia, the specific oxygen inhalation time should also be determined according to the specific situation of the patient, such as the surgical method and anesthesia recovery. If there is no underlying disease in the lungs, and the surgical impact is relatively small, such as thyroid surgery and breast surgery, oxygen can be stopped on the second day after surgery, but if there are lung diseases, such as lung infection, chronic obstructive pulmonary disease, etc., the oxygen inhalation time needs to be extended.

Postoperative oxygen may take 1 hour, may take 1 day, and may require daily oxygen, depending on the specific disease. Perennial smoking can easily lead to chronic bronchitis, emphysema, chronic obstructive pulmonary disease, cor pulmonale, etc. And your grandfather has been on oxygen at home for a long time, indicating that it is very likely to be chronic obstructive pulmonary disease.

In chronic obstructive pulmonary disease, oxygen is generally required for at least 15 hours a day.

Oxygen inhalation helps improve blood oxygen. Respiratory function is limited after thoracotomy and laparotomy, and oxygen must be inhaled. Major surgery can easily cause a stress response in the body, and the patient's lung function is greatly affected, so oxygen should be inhaled.

Oxygen is not necessarily needed only after surgery. If the respiratory oxygenation of the lungs is not good, oxygen can also be inhaled during the period to help and promote the body's recovery.

1. Major surgery is mostly general anesthesia, and patients have respiratory amnesia in the early stage after general anesthesia, and the respiratory muscle function is not fully recovered, and oxygen inhalation helps to increase blood oxygen.

2. Respiratory function is limited after thoracotomy and laparotomy, and oxygen must be inhaled.

3. Major surgery is easy to cause the body's stress response, and the patient's lung function is greatly affected, so oxygen should be inhaled.

Anesthesia during surgery will inhibit the patient's spontaneous respiratory function, and low-flow oxygen can improve the patient's respiratory function and prevent hypoxia.

Long-term inhalation of high concentrations of oxygen can produce the toxic effect of oxygen, affecting the lungs, central nervous system, erythropoietic system, endocrine system and retina, the most important of which is the oxygen to the respiratory organs. Under normal circumstances, after 6 hours of continuous inhalation of pure oxygen, nausea, irritability, paleness, cough, and chest pain can occur; After 24 hours of oxygen, vital capacity may be reduced; Breathlessness can occur after 1 to 4 days of pure oxygen. The degree of oxygen toxicity depends mainly on the partial pressure of oxygen in the inspired air and the duration of inhalation.

At present, it is considered safe to use 60% and 70% oxygen inhalation for 24 hours; 40% and 50% oxygen can continue to be used for 24 hours; If the oxygen concentration is greater than 40%, the likelihood of oxygen toxicity increases greatly after 2 to 3 days. Therefore, patients who need oxygen therapy should be targeted, and the oxygen concentration should not be blindly increased due to hypoxemia (if there is a right-to-left shunt in the lungs, increasing the oxygen concentration is ineffective).

It should be low blood pressure. This results in the need for oxygen for relief.