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The Function Of Oxygen Therapy

Aug 30, 2018
  1. Relieve nerve fatigue, relax body and mind, maintain vigorous energy, improve work efficiency; improve brain oxygen supply, regulate brain nervous system function, improve memory and thinking ability, improve learning efficiency;

    2.Reduce pollution and physical harm to the environment;

    3.To a certain extent, it can delay aging, enhance metabolism, reduce hypoxemia, and meet the needs of tissue metabolism;

    3.Relieve pulmonary hypertension caused by hypoxia, reduce polycythemia, reduce blood viscosity, reduce right ventricular burden, delay the occurrence and development of pulmonary heart disease; oxygen can relieve bronchospasm, reduce breathing difficulties, improve ventilatory dysfunction;

    4.Improve patient physical and brain function, improve exercise endurance and quality of life;

    5.Improve chronic obstructive pulmonary disease and prolong life;

    6.Reduce the number of hospitalizations and save medical expenses; reduce infection and antiemetic after surgery.


Long-term home oxygen therapy should be performed in accordance with any of the following three points:

1. The clinical state is stable for 3 to 4 weeks, no acute bronchitis, pulmonary inflammation, heart failure, and 2 consecutive arterial blood gas analysis results: arterial oxygen partial pressure PaO2 <60mmHg, blood oxygen saturation SaO2 <88%

2.The clinical status was stable, and at least 2 times of arterial blood gas analysis results showed that arterial oxygen partial pressure PaO2 was 55 ~ 59mmHg, accompanied by secondary erythrocyte hypertrophy, pulmonary hypertension or right heart failure of pulmonary heart disease, and PaO2 decreased by 10mmHg after exercise

3. PaO2>55mmHg during the day, but SaO2<75% or severe sleep apnea at night

Oxygen therapy in patients with chronic obstructive pulmonary disease (COPD) has been gradually recognized in recent years. COPD patients with dysfunction and ventilation due to long-term ventilatory dysfunction. Loss of blood flow leads to lack of O2 and CO2 retention, especially nighttime hypoxemia.

Oxygen therapy can increase the partial pressure of alveolar oxygen and increase the oxygen partial pressure gradient on both sides of the alveolar capillary membrane, thereby promoting the diffusion of oxygen and increasing the concentration of PaO2 and SaO2. According to domestic and international data, about 70% of patients with COPD develop chronic pulmonary heart disease, respiratory failure, and eventually death. Oxygen therapy can effectively correct hypoxemia, relieve lung function deterioration, reduce pulmonary artery area, inhibit pulmonary heart disease, and greatly improve the survival rate of patients with COPD. It is worth mentioning that the oxygen concentration of patients with long-term home oxygen therapy should be <35%. Oxygen poisoning occurs when the oxygen concentration is too high. For oxygen sources other than membrane oxygen, the oxygen humidity of the inhaled is >60%, and the upper respiratory tract is protected. The mucous membrane prevents the airway secretions from drying out, and the oxygen source, dust and bacteria obtained by membrane oxygenation are blocked by the membrane, and the water vapor can penetrate the membrane well, so the oxygen-enriched air is fresh, cool and has no odor.