Normal values for carbon dioxide binding capacity range from 21 to 31 mmol/L, and treatment is required when it is below 21 mmol/L. Carbon dioxide binding capacity is the amount of carbon dioxide in plasma in the form of bicarbonate ions, indicating the amount of carbon dioxide in plasma in bound form, reflecting the body’s alkali reserves. Low carbon dioxide binding capacity is commonly seen in metabolic acidosis, such as hyperthermia, trauma, uremia, etc.; respiratory alkalosis, such as dysthymia, encephalitis, hypoxia, improper mechanical ventilation, etc.; and also in diabetic ketoacidosis, severe diarrhea, hypoxemia and other conditions. It is recommended that patients with low carbon dioxide binding force go to the hospital in time to improve the relevant examination, under the guidance of the doctor to clarify the causes of standardized treatment, so as not to lead to adverse consequences.