Table 4– Examples of predicted functional residual capacity (FRC) measured by multiple-breath washout (MBW) and the upper limit of normal (ULN) for FRCMBW according to height and sex
 Height cm Males Females Predicted FRCMBW L ULN for FRCMBW L Predicted FRCMBW L ULN for FRCMBW L 55 0.085 0.123 0.082 0.119 60 0.107 0.154 0.103 0.149 65 0.132 0.189 0.128 0.184 70 0.162 0.232 0.158 0.226 80 0.237 0.338 0.229 0.327 100 0.463 0.660 0.447 0.636 110 0.622 0.885 0.598 0.851 120 0.816 1.161 0.784 1.115 140 1.339 1.903 1.276 1.814 160 2.024 2.874 1.966 2.792
• To take age into account, results have been calculated by using the age at which the quoted values for height represent the 50th centile. Thus, 70 cm represents the 50th centile for height at 0.64 years in males but 0.75 years in females, whereas 160 cm represents the 50th centile for height at 13.7 years in boys but 14.1 years in females [21].