Respiratory failure is classified into several types

Respiratory failure is divided into type I and type II. Type I is hypoxic respiratory failure, mainly caused by pulmonary ventilation dysfunction, seen in lung diseases; Type II is hypercarbonic respiratory failure, caused by alveolar ventilation deficiency, common in chronic obstructive pulmonary disease, etc. According to the different pathological sites and nature of respiratory failure, it can be divided into the following two types: 1. Type I respiratory failure: That is, hypoxic respiratory failure, mainly caused by pulmonary ventilation dysfunction, can be seen in alveolar ventilation deficiency, diffusion disorder, increased arterial-venous anatomical shunt and increased oxygen consumption, etc. Common in lung diseases, such as pneumonia, severe pulmonary tuberculosis, emphysema, diffuse pulmonary interstitial fibrosis, pulmonary edema, acute respiratory distress syndrome (ARDS), etc. 2. Type II respiratory failure: also known as hypercarbonic respiratory failure, caused by alveolar ventilation deficiency. Simple ventilation deficiency, O2 deficiency and CO2 retention are parallel, if accompanied by ventilation dysfunction, O2 deficiency is more serious. Type II respiratory failure is common in chronic obstructive pulmonary disease, upper respiratory tract obstruction, respiratory muscle dysfunction, etc. In addition, in actual clinical work, it will be divided into acute and chronic respiratory failure according to the course of disease. Acute respiratory failure refers to the original normal respiratory function, due to the sudden causes of the above five causes, causing ventilation, or ventilation function serious damage, sudden occurrence of respiratory failure clinical manifestations, such as cerebrovascular accident, drug poisoning inhibition of respiratory center, respiratory muscle paralysis, pulmonary infarction, ARDS, etc.

Chronic respiratory failure is more common in chronic respiratory diseases, such as chronic obstructive pulmonary disease, severe tuberculosis, etc. Emphysema, cor pulmonale, etc., of which COPD is the most common.