Respiratory failure is relatively common in clinical practice and is frequently seen in critical respiratory conditions. The causes of respiratory failure most often arise from diseases of the respiratory and circulatory systems, such as chronic obstructive pulmonary disease, acute exacerbation of asthma, severe pneumonia, severe pulmonary tuberculosis, diffuse pulmonary fibrosis, pulmonary edema, pneumoconiosis, pulmonary embolism, various causes of heart failure, pulmonary hypertension, severe pneumothorax, and substantial pleural effusion, among others. These can all lead to respiratory failure. Therefore, if respiratory distress occurs clinically and respiratory failure is suspected, it is crucial to conduct prompt examinations and actively manage the condition.