Can oxygen be inhaled continuously?
Apr 08, 2023
Source: Cainiu Health
Dr. Guo Xiheng
Introduction
Whether oxygen can be continuously inhaled depends on the extent of cardiopulmonary impairment. For healthy individuals with high blood oxygen saturation, continuous oxygen inhalation is not recommended, as excessive oxygen intake may lead to oxygen toxicity. However, for patients with conditions such as chronic pulmonary heart disease or chronic obstructive pulmonary emphysema, who have impaired cardiopulmonary function, continuous oxygen therapy may be appropriate.
Generally, whether oxygen can be continuously administered depends on the extent of cardiopulmonary dysfunction. If cardiopulmonary impairment is mild, continuous oxygen therapy is usually not recommended; conversely, if the impairment is severe, continuous oxygen administration may be necessary. Specific explanations are as follows:
1. Not recommended
In healthy individuals with high blood oxygen saturation and no signs of hypoxia or only mild hypoxia, and in cases of minor cardiopulmonary damage, continuous oxygen inhalation is generally not advised. Excessive oxygen intake may lead to oxygen toxicity, causing symptoms such as dizziness, nausea, and fatigue. It may also generate excessive oxygen free radicals in the body, affecting organ and tissue metabolism and increasing the risk of disease.
2. Recommended
For patients with conditions such as chronic pulmonary heart disease or chronic obstructive pulmonary emphysema, where cardiopulmonary function is significantly impaired and accompanied by severe hypoxia—such as shortness of breath and wheezing—continuous oxygen therapy is typically appropriate. However, this should be conducted under a doctor's guidance using long-term, low-flow oxygen to alleviate discomfort.
It is advisable to maintain healthy dietary habits and avoid consuming large amounts of spicy, irritating foods or exposure to irritants, which could trigger respiratory discomfort.
