The normal range for partial pressure of carbon dioxide should generally be 35-45 mmHg. If it is not within the normal range, it means that there is a health problem. First, if the partial pressure of carbon dioxide decreases, it indicates hyperventilation, which is usually seen when the alveoli are hyperventilating and exhaling too much carbon dioxide, such as pulmonary infarction, asthma, certain pneumonia and other diseases. Secondly, the case of elevated partial pressure of carbon dioxide, if the partial pressure of carbon dioxide value appears to be elevated, it is caused by other diseases, more common respiratory discomfort, chronic bronchitis, hypopnea, etc. Generally, when respiratory discomfort occurs, you must go to a regular hospital for a comprehensive examination in a timely manner.