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Oxygen therapy is to correct the hypoxia-targeted measures to increase the oxygen clinical concentration, improve alveolar oxygen partial pressure, oxygen saturation and content, to ensure that tissue oxygen supply.

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Oxygen and oxygen therapy in two ways: one is the low concentration of oxygen, another is a high concentration of oxygen.

Low concentrations of oxygen (oxygen concentration of less than 50%): generally used for chronic bronchitis, emphysema, pulmonary heart disease and so on, also known as chronic obstructive pulmonary disease, chronic respiratory failure in the loss of compensatory time, oxygen must take blood The increase in oxygen pressure, high blood pressure can weaken the carotid sinus reflex on the respiratory center stimulation, thereby reducing the amount of ventilation, there are increasing the possibility of carbon dioxide retention. So be careful with oxygen, the general use of low oxygen concentration, if necessary, increase by mechanical respiratory therapy.

High concentrations of oxygen (oxygen concentration greater than 50%): in patients with acute respiratory failure, such as breathing, cardiac arrest, acute respiratory distress syndrome, acute poisoning (such as carbon monoxide poisoning or gas poisoning), such as respiratory depression, we must use every second counts high concentration or pure oxygen for emergency treatment, but not long-term use to prevent oxygen toxicity or other complications.

In short, they should pay attention to the oxygen in the oxygen inappropriate application also has side effects, especially for patients. Should be applied under the guidance of doctors.