It is true that the higher the blood oxygen value, the better.
The blood oxygen value reflects the proportion of hemoglobin saturated with oxygen to all hemoglobin in the blood, and is usually used in the clinic to monitor whether there are abnormalities in pulmonary ventilation and lung gas exchange.
In normal people, the normal value of blood oxygen value is between 95% and 100%. The higher the value, the better the cardiopulmonary function. Oxygen values below 90% are indicative of respiratory failure. It is necessary to combine with blood gas analysis to make a comprehensive judgment.
Acute heart failure, respiratory failure, pulmonary embolism, chronic obstructive pulmonary disease, bronchial asthma, chronic bronchitis, severe pneumonia, etc., may have decreased oxygen values.
Oxygen deprivation may cause dizziness, fatigue, palpitations, tachycardia in severe cases, changes in respiratory rate and rhythm, and even respiratory cardiac arrest.
If a drop in blood oxygen value occurs, it is recommended to go to the hospital as soon as possible to clarify the cause of the disease and treat the cause of the disease.