The patients took induced sputum cell analysis test, and lung function test for peak exhale flow variation rate, challenging bronchialtest, and standard diagnosis and a procedure diagnosis.
Objectives:To investigate the clinical value of impulse oscillometry(IOS) in bronchial challenge test.
目的:探讨脉冲振荡法在支气管激发试验中的应用价值。
3
Respiratory responsiveness was measured by methacholine chloride bronchial provocation test in 163 new cotton workers before and after 10 weeks exposure to cotton dust.