Parameter | Measured | Predicted | % predicted | SR |
FEV1 L | 1.64 | 3.30 | 50 | −3.27 |
FVC L | 4.11 | 4.47 | 92 | −0.60 |
FEV1/FVC % | 40 | 72 | 55 | −4.55 |
TLCO | 5.42 | 9.67 | 56 | −3.01 |
KCO | 0.91 | 1.19 | 76 | |
RV L | 3.94 | 3.06 | 129 | 2.15 |
SR: standard residual (normal±1.64); FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity; TLCO: transfer factor of the lung for carbon monoxide; KCO: transfer coefficient for carbon monoxide; RV: residual volume.