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Unknown General 231904e4

Disease shown in this PFT is best characterized by

A
Low lung volumes
B
A decrease in the l-second forced expiratory volume-forced vital capacity (FEV1/FVC) ratio
C
An increased vital capacity (VC)
D
A decreased diffusing capacity DLCO)
High-Yield Explanation
Restrictive disorders are characterized by low lung volumes. Diffusing capacity (DLCO) may or not be decreased in pulmonary fibrosis), a type of restrictive disease. A decrease in the forced expi­ratory volume in one second-forced vital ca­pacity (FEV1/FVC) ratio is the hallmark of obstructive, not restrictive, disease & capacity (VC) and airway resistance (Raw) are de­creased in-restrictive lung disorders.

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