n.支气管缩小（狭窄）

The allergen caused severe bronchoconstriction, making it difficult for the patient to breathe.
过敏原引发了严重的支气管收缩，使得病人呼吸困难。
Asthma is characterized by episodic bronchoconstriction, which can be triggered by various factors like exercise or exposure to cold air.
哮喘的特征是阵发性支气管收缩，可能由运动、寒冷空气暴露等各种因素引发。
Bronchoconstriction often results from inflammation in the airways and can lead to wheezing and shortness of breath.
支气管收缩通常是由气道炎症引起的，并可能导致哮鸣音和呼吸急促。
The doctor prescribed a bronchodilator to relieve the patient's bronchoconstriction following an acute asthma attack.
医生在患者急性哮喘发作后开了一种支气管扩张剂以缓解其支气管收缩症状。
Inhalation of tobacco smoke can cause immediate bronchoconstriction due to its irritant properties on the respiratory system.
吸入烟草烟雾因其对呼吸系统的刺激性可立即引起支气管收缩。
Bronchoconstriction is a common response to certain stimuli in patients with chronic obstructive pulmonary disease (COPD).
在慢性阻塞性肺病（COPD）患者中，对某些刺激物的常见反应就是支气管收缩。
The athlete experienced bronchoconstriction during intense exercise, suggesting exercise-induced asthma.
这位运动员在剧烈运动时出现了支气管收缩现象，提示可能是运动诱发的哮喘。
Histamine release leads to increased mucus production and bronchoconstriction, typical symptoms seen in allergic reactions.
组胺释放导致黏液分泌增多及支气管收缩，这是过敏反应中的典型症状。
Bronchoconstriction can be measured non-invasively using spirometry, which helps diagnose conditions like asthma and bronchitis.
通过无创性的肺功能测定法可以测量支气管收缩程度，有助于诊断哮喘和支气管炎等疾病。
Treatment with corticosteroids can effectively reduce bronchoconstriction and inflammation in the airways of individuals with asthma.
采用皮质类固醇治疗能有效地减少哮喘患者的气道炎症和支气管收缩。