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Expiratory reserve volume (EPV) is the amount of extra air — above normal (tidal) volume — exhaled during a forceful breath out. You doctor will measure your EPV and other pulmonary...
20 cze 2024 · Expiratory reserve volume is an important measurement of lung function testing when combined with other results from your pulmonary function test. These measures include: Vital capacity (VC) and forced vital capacity (the maximum amount of air you can forcibly exhale from your lungs after fully inhaling, about 80% of lung capacity)
28 sie 2023 · The measurement of lung volumes includes several important variables, such as functional reserve capacity (FRC), vital capacity (VC), slow vital capacity (SVC), expiratory reserve volume (ERV), and residual volume (RV).
7 maj 2021 · Moreover, the Obstructive Index, defined as a ratio of FVC to the volume-difference between two points of half of the peak expiratory flow rate (PEFR) on the MEFV curve, has been recently ...
7 maj 2021 · Peak expiratory and inspiratory flow rate. PEFR reflects the largest expiratory flow rate achieved with a maximally forced effort from a position of maximal inspiration that can be obtained during spirometric recordings.
The level of maximal expiration (residual volume, RV) is determined by the force exerted by respiratory muscles (disorders include e.g. muscle paralysis), obstruction, occlusion and compression of small airways (disorders include e.g. emphysema) and by the mechanical properties of lung and thorax (disorders include diffuse fibrosis, kyphoscolios...
Abstract. This document updates the 2005 European Respiratory Society (ERS) and American Thoracic Society (ATS) technical standard for the measurement of lung volumes.
