Reduced Forced Vital Capacity
April 24th, 2019
Overview
The forced vital capacity (FVC) is the maximal amount of air exhaled after a maximal inspiration.
Normal Range
- 80 - 120% predicted
Interpretation
- Normal FVC indicates normal lung elasticity, a normal chest wall and no respiratory muscle weakness.
- Low FVC (<80% predicted) is suggestive of restrictive lung disease or poor expiratory effort.
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