Exs 8-1lab(rev) - Measurements of Pulmonary Function...

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Measurements of Pulmonary Function Exercise 8.1
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Definitions Spirometry: technique for measuring lung volumes and capacities Ventilation: the movement of air in and out of the lungs There are many important aspects of pulmonary function that can be visualized and measured.
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Lung Volumes Lung volumes – non-overlapping components of lung capacities Tidal Volume : volume of gas inspired or expired during each normal (unforced) ventilation cycle Inspiratory Reserve Volume : maximum volume of gas that can be forcefully inhaled after tidal (normal) inhalation Expiratory Reserve Volume : maximum volume of gas that can be forcefully exhaled after a tidal (normal) exhalation Residual Volume : volume of gas remaining in the lungs after a maximum (forced) exhalation
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Lung Capacities Lung capacities – the sum of two or more lung volumes Total Lung Capacity : the total volume of gas in the lungs after a maximum (forced) inhalation (Inspiratory Reserve + Tidal + Expiratory Reserve +
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Exs 8-1lab(rev) - Measurements of Pulmonary Function...

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