What are the terminal symptoms of pulmonary encephalopathy patients?

Pulmonary encephalopathy should be said to be pulmonary encephalopathy, pulmonary encephalopathy is lung disease, such as chronic obstructive pulmonary disease, severe asthma, severe pulmonary infectious disease, pulmonary vascular disease, neuromuscular disease and a series of diseases caused by oxygen content decline, accompanied by carbon dioxide content rise, early pulmonary encephalopathy when a small amount of carbon dioxide retention for insomnia, excitement, shortness of breath, irritability, cyanosis, bulbar conjunctival edema, etc. When the carbon dioxide in the body continues to rise, it is manifested as apathy, lethargy, slowed breathing, and even respiratory arrest. Therefore, patients with pulmonary encephalopathy are generally more peaceful before death, because when the symptoms are severe, the patient changes from the original excited state to lethargy and coma, and has no consciousness, and does not feel pain.