Respiratory failure is a critical condition in clinical settings, characterized by high mortality rates and the potential to impair multiple organ functions, thus endangering the lives of patients. However, in cases of chronic respiratory failure, it is generally incurable, as the respiratory function of these patients has already declined significantly. For patients with acute respiratory failure, the possibility of recovery is closely tied to the ability to diagnose early and administer effective treatment promptly. If acute respiratory failure is treated effectively early on by removing the trigger and the cause, and if the respiratory function can significantly improve within a short time, then there is still a chance for a cure.