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OverviewPlease note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Airway obstruction is a respiratory problem caused by increased resistance in the bronchioles (usually from a decreased radius of the bronchioles) that reduces the amount of air inhaled in each breath and the oxygen that reaches the pulmonary arteries. It is different from airway restriction (which prevents air from diffusing into the pulmonary arteries because of some kind of blockage in the lungs).Obstruction can be measured using spirometry. A decreased FEV1/FVC ratio (versus the normal of about 80%) is indicative of an airway obstruction, as the normal amount of air can no longer be exhaled in the first second of expiration. An airway restriction would not produce a reduced FEV1/FVC ratio, would produce a reduced vital capacity. The ventilation is therefore affected leading to a ventilation perfusion mismatch and hypoxia. Full Product DetailsAuthor: Jordan NaoumPublisher: Duc Imprint: Duc Dimensions: Width: 15.20cm , Height: 0.40cm , Length: 22.90cm Weight: 0.100kg ISBN: 9786138092773ISBN 10: 6138092775 Pages: 60 Publication Date: 28 October 2011 Audience: General/trade , General Format: Paperback Publisher's Status: Unknown Availability: Not yet available  This item is yet to be released. You can pre-order this item and we will dispatch it to you upon its release. Table of ContentsReviewsAuthor InformationTab Content 6Author Website:Countries AvailableAll regions |
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