Effects of bronchial provocation test and bronchial dilation test for the diagnosis of lung diseases

Abstract

Aim: Present study was performed to explore the effects of bronchial provocation test (BPT) and bronchial dilation test (BDT) for the diagnosis of lung diseases. Methods: BPT and BDT results were respectively detected by methacholine and albuterol in patients with different lung diseases and non-lung diseases. BPT and BDT indexes including exhaled nitric oxide (ENO), forced expiratory volume of first minute (FEV1), forced vital capacity (FVC), diffusion of carbon monoxide in the lungs (DLCO) and eosinophilia (EOS) were compared by t-test between different groups. Results: Positive and negative BPT indexes were significantly different in lung diseases, similar results of BDT results were also discovered in patients with lung diseases (p