The physiological basis and clinical significance of lung volume measurements

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• 作者：Mohamed Faisal Lutfi
• 关键词：Lung volumes ; Lung capacities ; Obstructive ; Restrictive ; Spirometry
• 刊名：Multidisciplinary Respiratory Medicine
• 出版年：2017
• 出版时间：December 2017
• 年：2017
• 卷：12
• 期：1
• 全文大小：1030KB
• 刊物主题：Pneumology/Respiratory System; Intensive / Critical Care Medicine; Thoracic Surgery;
• 出版者：BioMed Central
• ISSN：2049-6958
• 卷排序：12

文摘

From a physiological standpoint, the lung volumes are either dynamic or static. Both subclasses are measured at different degrees of inspiration or expiration; however, dynamic lung volumes are characteristically dependent on the rate of air flow. The static lung volumes/capacities are further subdivided into four standard volumes (tidal, inspiratory reserve, expiratory reserve, and residual volumes) and four standard capacities (inspiratory, functional residual, vital and total lung capacities). The dynamic lung volumes are mostly derived from vital capacity. While dynamic lung volumes are essential for diagnosis and follow up of obstructive lung diseases, static lung volumes are equally important for evaluation of obstructive as well as restrictive ventilatory defects. This review intends to update the reader with the physiological basis, clinical significance and interpretative approaches of the standard static lung volumes and capacities.