Spirometry: how to evaluate the results?

Introduction. The European Respiratory Society, the American Thoracic and Russian Society are currently working on updating technical standards interpretive strategies for routine lung function tests. There is a search recommendations best choice of reference values, optimal limits normal severity grading detected impairments. An important step in this work standartization pulmonary tests interpretation, including spirometry. Aim. Review existing concepts spirometry according to new approaches their quantitative qualitative assessment. Materials methods. scientific publications PubMed eLIBRARY.RU platforms were analyzed. materials posted official websites Global Lung Function Initiativewere also used. Results. A brief overview main values presented: Coal Steel Community (1993), Initiative (2012, 2021), R.F.Klement et al. (1986, 1991). issues defining lower limit normal, diagnosing ventilatory impairments assessing reduction using z-score percentage predicted value when analyzing results considered. Conclusion. type impairment should be presented interpretation just like vital capacity obstructive generally diagnosed by spirometry, if signs restrictive or mixed patterns present, it recommended determine total body plethysmographymethod. Assessment levels any indices carried out values.