Severe pulmonary dysfunction ventilation is a type of pulmonary function test report that indicates the presence of obstructive ventilation dysfunction to a severe degree.
Severe Pulmonary Functional Ventilation Impairment is determined in the pulmonary function test report as a ratio of first second force expiratory volume (FEV1) to forceful lung capacity (FVC) of less than 70%, along with an FVC as a percentage of predicted value of less than 40%.
Severe pulmonary dysfunction is only a result of pulmonary function tests, and the exact cause of the problem needs to be diagnosed in conjunction with other information, which can be found in chronic obstructive pulmonary disease, pneumoconiosis, and so on.
If any of the above symptoms occur, you should consult a doctor in time for proper treatment under the guidance of a specialized doctor.