Lung function examination is one of the important examination tools for respiratory system diseases, which requires comprehensive analysis of lung volume, lung ventilation function and lung gas exchange function.
1. Lung volume: mainly includes tidal volume, deep inspiration volume, functional residual air volume, residual air volume, compensatory expiratory volume, compensatory dose, lung capacity, total lung volume and other examinations.
2. Ventilation function: It mainly includes the examination of maximum expiratory volume, exertion lung volume, lung ventilation, etc. It mainly reflects the condition of lung ventilation. It mainly reflects the lung ventilation situation and clarifies whether there is respiratory obstruction or weakened respiratory function.
3. Ventilation function: mainly used to evaluate the efficiency of alveolar capillary membrane for gas exchange.
Lung function test also includes bronchodilator test, bronchial excitation test junction, lung function test results are usually also related to the patient’s age, height, weight, medical history, etc., need to be considered comprehensively, if necessary, follow the doctor’s instructions to assist other tests to confirm the diagnosis of the disease.