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如果哮喘是由于曝光工作必须有这些风险敞口和哮喘之间的关系。哮喘导致气道高反应性和阻塞;便携式的阻塞可以测量米,通常测量呼气流量峰值,或有时在1秒用力呼气量(FEV1)。这些可以测量连续(例如2小时)在上几个星期,远离工作。一旦职业性哮喘的发展,将会引发哮喘许多非特异性触发哮喘常见非职业化。挑战在于如何确定最大呼气流量的变化由于工作等非职业化的原因。标准统计检验发现不敏感或非特异性,主要是由于变量发生恶化的时期暴露后,和有时长时间恢复,这样的日子远离工作最初可能测量低于天在工作。计算机辅助诊断援助(Oasys)开发独立的职业从非职业化气流阻塞的原因。Oasys-2基于判别分析,取得了至少94%的敏感性为75%,特异性;因此最大呼气流量监控结合Oasys-2分析确认,排除职业性哮喘。 A neural network version in development has improved on this. Both have been based on expert interpretation of peak flow measurements plotted as daily maximum, mean, and minimum, with the first reading at work taken as the first reading of the day. Oasys has been evaluated with independent criteria against measurements made in a wide range of occupational situations. Oasys is sufficiently developed to be the initial method for the confirmation, although less so for exclusion of occupational asthma.