| Above is a flow-volume loop diagrammatic representation of normal pulmonary function. |
| Pulmonary Function Testing | |
|---|---|
| Parameter | Value |
| FVC (L) | 5 |
| FEV1 (L) | 4 |
| FEV1/FVC (%) | 80 |
| MVV (L/min) | 100 |
| TLC (L) | 6 |
| DLCO (mL/min/mm Hg) | 20 |
| Note above that the forced expiratory volume in 1 second (FEV1) is normally high because of the elasticity of the distal lung parenchyma and the rigid airways. |
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