Characteristics of the presented case

Case, woman, 55 years old
BMI kg·m−217
FEV1 L0.42
FEV1 % predicted14
FVC L1.97
FVC % predicted53
FEV1/FVC %21
TLC % predicted109
RV % predicted211
RV/TLC %72
DLCO % predicted29
pH at room air7.40
PaCO2 on room air kPa (mmHg)7.2 (54)
PaO2 on room air Pa (mmHg),6.0 (45)
HCO3 on room air mmol·L−134
6-MWD m125

BMI: body mass index; FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity; TLC: total lung capacity; RV: residual volume; DLCO: diffusing capacity of the lung for carbon monoxide; PaCO2: arterial carbon dioxide tension; PaO2: arterial oxygen tension; HCO3: bicarbonate; 6MWD: 6-min walk distance.