According to the medical history, physical examination and auxiliary examination, the diagnosis is: acute attack of chronic bronchitis, chronic obstructive emphysema, chronic pulmonary heart disease and respiratory failure.

Nursing: low-flow oxygen inhalation, pay attention to the inhaled oxygen concentration can not be high; Keep the respiratory tract unblocked, suck and expel sputum in time, and keep the mouth clean; Pay attention to the dripping speed of infusion drugs, which is not easy to be too fast; Record the patient's inflow and outflow, observe the changes of the condition in time, especially the changes of consciousness, and be alert to the occurrence of complications such as pulmonary encephalopathy.

Health education in stable condition: quit smoking and avoid contact with irritating gases. Exercise moderately, strengthen nutrition and improve immunity. Pay attention to keep warm and reduce the factors that aggravate the condition such as respiratory tract infection. Conditional advice is long-term home oxygen therapy.