| Func_Res_Cap = Exp_Reserve_Vol + Residual_Vol |
| Insp_Cap = Insp_Reserve_Vol + Tidal_Vol |
| Total_Lung_Cap = Insp_Reserve_Vol + Tidal_Vol + Exp_Reserve_Vol + Residual_Vol |
| Vital_Cap = Insp_Reserve_Vol + Tidal_Vol + Exp_Reserve_Vol |
| Closing_Cap = Closing_Vol + Residual_Vol |
| CV_VC_Ratio = 100 * Closing_Vol / Vital_Cap |
| CC_TLC_Ratio = 100 * Closing_Cap / Total_Lung_Cap |
| RV_TLC_Ratio = 100 * Residual_Vol / Total_Lung_Cap |