To be on the safe side, it is best to use oxygen bags, and oxygen cylinders can be prepared for those who need regular oxygen inhalation. Medical emergency oxygen can cause lung injury, and may also cause oxygen dependence or oxygen poisoning. It is nonsense that ordinary nasal catheter can not reach the concentration that causes lung injury and oxygen poisoning, and oxygen poisoning will only happen when using a closed mask or ventilator. ?
Finally, I need to remind you that no matter what kind of oxygen inhalation method, you should be careful about the problem of carbon dioxide retention. Oxygen therapy needs to follow the principle of low flow and long-term adherence.
Extended data:
Oxygen inhalation is used to correct hypoxia, improve arterial oxygen partial pressure and oxygen saturation level, and promote metabolism, which is one of the important methods for adjuvant treatment of many diseases.
Respiratory failure, chronic tracheitis, cerebrovascular disease, coronary heart disease. If the clinical symptoms of hypoxia are not obvious, there may be oxygen debt or abnormal microcirculation metabolism, and oxygen may be needed. For example, some patients before and after operation, patients with hemorrhagic shock, patients with bad fetal heart sound or patients with long labor process during delivery.
High concentration "oxygen therapy" may cause complications if you do not take oxygen blindly and without restriction according to the doctor's advice. At this time, it will inhibit breathing, cause oxygen poisoning, discomfort and pain behind the sternum, aggravate when inhaling, and cough and dyspnea.