[Technical standards for pulmonary function tests: impulse oscillometry].

Impulse oscillometry (IOS) is a method for measuring respiratory impedance based on the forced oscillation technique (FOT). The IOS measurement requires only quiet tidal breathing, which is simple, suitable for a wide range of people and provides various respiratory physiological parameters. For promoting the standardization and clinical application of IOS measurement in China, based on the relevant research evidence and the updated technical standards by European Respiratory Society, this article provided a brief introduction to the background of IOS technique and the current situation of its clinical application in China, as well as the recommendations and interpretations on the indications and contraindications, device calibration, testing protocols, quality control requirements including acceptability and repeatability criteria, measurement parameters and graphs, testing results interpretation, references values and normal limits, report template, clinical application including assessment of airway patency, airway reversibility and responsiveness, small airway function and so on. It also offered recommendations on the relevant thresholds of diagnosis and evaluation.脉冲振荡（IOS）检查技术是一种基于强迫振荡技术的测量呼吸阻力的方法，检查过程中患者仅需自然平静呼吸，操作简便，适用人群广泛，提供呼吸生理参数丰富。为促进IOS检查在我国的规范化应用和推广，本文结合了国内外相关研究报道并参照国外指南建议，对IOS检查规范的制定背景、适应证和禁忌证、仪器校准、检查方法和标准操作流程、可接受测试和重复性等质量控制要求、各检查指标及图形含义、检查结果解读、预计值及正常值参考范围、报告格式模板以及在评估气道通畅性、气道可逆性及反应性、小气道功能及新兴研究等方面的临床应用等进行了详细的介绍，对相关诊断和评估阈值给予了建议。.