A clinical sign of obstructive lung disease would be a reduced FEV1/FVC ratio,where "FVC" is "forced" VC.

Name: A clinical sign of obstructive lung disease would be a reduced FEV1/FVC ratio,where "FVC" is "forced" VC.
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A reduced FEV1/FVC ratio is a clinical sign of obstructive lung disease, indicating that the airways are narrowed and it is difficult to exhale air fully. FVC stands for forced vital capacity, which is the maximum amount of air a person can exhale forcefully after taking a deep breath.

A Clinical Sign of Obstructive Lung Disease Would Be a Reduced