Symptoms of respiratory failure in severe pneumonia include: 1, the lungs are a respiratory organ, all the symptoms related to the lungs can be the manifestation of severe pneumonia, for example, the patient will be manifested as tightness in the chest, shortness of breath, there will be dyspnea, the normal respiration is only 12-20 breaths / min, this patient’s respiration may be up to 40 breaths / min, there can be coughing, coughing up sputum or even hemoptysis, there can be wheezing, end-over-end respiration; 2, at the same time Can appear systemic toxicity manifestations, such as can have high fever, can appear low blood pressure, blood pressure drop, and even appeared in the mental aspect of the change; 3, once the severe pneumonia manifested into the mental aspect of the change, indicating that the patient has appeared in the brain ischemia, or even hypoxia of the change may also lead to the patient due to the emergence of pneumonia after the vegetative state, called the social death, that is, the vegetative state, and the outside world has no way of communication This kind of situation. So for severe pneumonia, ventilation is one of the most crucial, there must be enough oxygen, and then the breathing must be improved. If you can’t compensate by yourself, you need to use equipment, such as a ventilator to help ventilation, in order to achieve the best therapeutic effect.