What should we do if the blood oxygen saturation is low?

•What should we do if the blood oxygen saturation is low?

The normal blood oxygen saturation of the human body is more than 95%, and the vein is about 75%.

If the blood oxygen level is around 90%, the patient will experience mild hypoxia, chest tightness, and shortness of breath. At this time, if the patient is kept quiet and given oxygen, the patient's symptoms are usually relieved.

If the blood oxygen level is below 80%, the patient will experience obvious symptoms of hypoxia and experience chest tightness, shortness of breath and difficulty breathing. The risk is relatively high for patients who experience no significant improvement in chest tightness even when given large amounts of inhaled oxygen.

This condition is common in various respiratory and circulatory diseases, such as severe pneumonia and pulmonary fibrosis. If the oxygen saturation is below 50%, it is usually a manifestation of advanced disease, which indicates that the patient's respiratory function will soon fail.

Patients generally present with severe dyspnea, profuse facial sweating, cyanosis of the lips, and a large number of moist rales can be heard in both lungs. At this time, even if various diuretics, oxygen inhalation and other treatments are given, it is difficult to relieve the patient's symptoms.

Blood oxygen saturation is an important physiological parameter of the human body’s breathing and circulation. If the parameter is too low, it will manifest as hypoxia. In clinical practice, oxygen therapy is mostly used to adjust the concentration and speed according to the condition. Symptoms can also be relieved by taking a break for mild symptoms. Allow the breathing rhythm to calm down and gradually recover.

After the symptoms are relieved, you should not take it lightly, and you should go to the hospital to find out the cause for treatment. If it is caused by chronic obstructive pulmonary emphysema, oxygen should be kept at a low concentration and low flow, and blood oxygen saturation, electrolytes, and liver and kidney functions should be monitored dynamically, and the treatment plan should be adjusted according to the condition.

If it is caused by dyspnea, a high-concentration and high-flow oxygen supply should be maintained, and the method of oxygen inhalation with positive end-expiratory pressure should be used for treatment.