诱导痰实验室检查是有效评估气道炎性反应的方法之一,也是检测气道pH值的有效方法。不同的储存方法、合格痰的挑选、痰液的混匀和细胞涂片方法等都会对诱导痰的检查结果产生影响。慢性咳嗽的病因复杂,诱导痰实验室检查为慢性咳嗽的病因分析提供了有力的证据,是诊断嗜酸性粒细胞性支气管炎的关键。 Induction of sputum laboratory tests is an effective way to assess airway inflammatory response, but also an effective method to detect airway pH. Different storage methods, the selection of qualified sputum, sputum mixing and cell smear methods will have an impact on sputum test results. The complex causes of chronic cough, induced sputum laboratory tests for the etiology of chronic cough provide strong evidence that is the key to diagnosis of eosinophilic bronchitis.