Sarcoidosis other diagnostic studies: Difference between revisions

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Revision as of 01:51, 6 February 2018

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

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 ==Other Diagnostic Studies==
-Sarcoidosis most often manifests as a restrictive disease of the lungs, causing a decrease in [[lung volume]] and decreased [[compliance]] (the ability to stretch). The disease typically limits the amount of air drawn into the lungs, but produces higher than normal expiratory flow ratios. The [[vital capacity]] (full breath in, to full breath out) is decreased, and most of this air can be blown out in the first second. This means the [[spirometry|FEV<sub>1</sub>/FVC ratio]] is increased from the normal of about 80%, to 90%. Obstructive lung changes, causing a decrease in the amount of air that can be exhaled, may occur when enlarged lymph nodes in the chest compress airways or when internal inflammation or nodules impede airflow.
 ==References==