阳性病史和检查发现如下症状:吸气或者双相喘鸣、吸气性喘鸣、阵发性呼吸困难、咳嗽、咽喉缩紧感、发声困难和/或喉痉挛、存在感官触发器以及在检查中发现可触及的喉部紧张。[29]Morrison M, Rammage L, Emami AJ. The irritable larynx syndrome. J Voice. 1999;13:447-455.http://www.ncbi.nlm.nih.gov/pubmed/10498060?tool=bestpractice.com
对哮喘治疗没有反应,或者在使用吸入器后,症状恶化。
使用挠性经鼻光纤内窥镜检查的异常喉部研究结果;但是,常规检查不会排除PVFM的诊断。[80]Landwehr LP, Wood RP 2nd, Blager FB, et al. Vocal cord dysfunction mimicking exercise-induced bronchospasm in adolescents. Pediatrics. 1996;98:971-974.http://www.ncbi.nlm.nih.gov/pubmed/8909498?tool=bestpractice.com
在呼吸肺活量测定法截断的吸气圈;但是,正常的吸气圈不能排除PVFM的诊断。[47]Jain S, Bandi V, Officer T, et al. Role of vocal cord function and dysfunction in patients presenting with symptoms of acute asthma exacerbation. J Asthma. 2006;43:207-212.http://www.ncbi.nlm.nih.gov/pubmed/16754523?tool=bestpractice.com[80]Landwehr LP, Wood RP 2nd, Blager FB, et al. Vocal cord dysfunction mimicking exercise-induced bronchospasm in adolescents. Pediatrics. 1996;98:971-974.http://www.ncbi.nlm.nih.gov/pubmed/8909498?tool=bestpractice.com
排除其他类型的喉部疾病。