Respiratory failure is a common and critical condition in the respiratory system, and it is very serious. Respiratory failure manifests as a severe decline in respiratory function, often with significant damage to the lungs' ventilation and gas exchange capabilities. Patients often experience severe chest tightness, difficulty breathing, obvious hypoxic cyanosis, and may even present with symptoms such as convulsions and coma, which can be fatal. Treatment usually requires oxygen therapy and often the assistance of a ventilator. Therefore, respiratory failure is considered a very serious condition clinically and requires proactive management to save the patient's life.