Measured | % Predicted | Std Res | |
FEV1 | 3.20 | 117 | +1.2 |
FVC | 4.47 | 141 | +3.0 |
VC | 4.74 | 107 | +3.2 |
FEV1/FVC | 68 | 83 | −2.1 |
TLC | 5.60 | 116 | +1.3 |
FRC | 2.71 | 102 | +0.1 |
RV | 0.86 | 55 | −2.0 |
TL,CO | 6.73 | 80 | −1.4 |
KCO | 1.01 |
FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity; VC: vital capacity; TLC: total lung capacity; FRC functional residual capacity; RV: residual volume; TL,CO: transfer factor of the lung for CO; KCO: transfer coefficient of the lung for CO. Spirometry showed some mild small airways obstruction, but her lung function was essentially normal.