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支气管哮喘患者肺膨胀本身能激发气道狭窄,因此在气道激发试验中常避免肺膨胀,但对咳嗽的作用很少引起人们的注意。作者等研究了组胺激发支气管收缩前、后,随意咳嗽,以及咳嗽和用力吸气二者对气道阻力(用气道传导率SGaw表示)和胸腔气体容量(用Vtg表示)的影响。用一个容量恒定的自动控制的体积描记仪进行测定,实验前测定4～6次,每次2～3秒钟;吸入组胺引起支气管收缩后3分钟
Lung inflation in patients with bronchial asthma itself can stimulate airway stenosis, and therefore in the airway challenge test to avoid lung expansion, but the role of the cough rarely caught the attention of people. The authors studied the effects of histamine-induced bronchoconstriction, random cough, and cough and forced inspiration on airway resistance (expressed as airway conductance SGaw) and pleural gas volume (expressed as Vtg). With a constant volume of automatic control plethysmography was measured before the experiment was measured 4 to 6 times, each 2 to 3 seconds; inhaled histamine caused bronchoconstriction 3 minutes