What is the oxygen saturation level in patients with chronic obstructive pulmonary disease?

In general, blood oxygen saturation should be maintained at least above 90% in patients with chronic obstructive pulmonary disease (COPD).
Chronic obstructive pulmonary disease (COPD) is the abbreviation of chronic obstructive pulmonary disease (COPD), which is most common in middle-aged and elderly men, and is characterized by chronic cough, sputum, and shortness of breath after activity. As the patient ages and lung function declines, hypoxia is often present in the later stages of the disease.
Oxygen saturation is affected by the duration of the disease, age, course of treatment, and whether or not the patient is on long-term home oxygen therapy and a non-invasive ventilator. Patients with chronic obstructive pulmonary disease in the late stage of the disease, due to the serious decline in lung function, often have different degrees of hypoxemia, can also be accompanied by hypercapnia, oxygen saturation is often less than 90%, should be given timely oxygen therapy, timely correction of hypoxemia.
If the blood oxygen saturation is too high or too low, it is recommended to consult a doctor in time to take appropriate treatment to avoid danger.