Carlsson C, Jorfeldt L, Carlsson L, Hesselvik F
Clin Physiol. 1985;5 Suppl 3:123-6. doi: 10.1111/j.1475-097x.1985.tb00614.x.
In an experimental model using a Servo-ventilator (Siemens-Elema, Sweden) oxygen consumption (V'O2) and carbon dioxide production (V'CO2) were measured at varying FIO2. Gas exchange was simulated by adding N2 or CO2 to the inspiratory line of the ventilator. Inspiratory and expiratory gases were collected in Douglas bags for analyses by a mass spectrometer. The residual standard deviation for the regression of measured V'O2 on predicted V'O2 was 14 ml/min and did not significantly differ from the line of identity. For V'CO2 the corresponding residual standard deviation was 3 ml/min. This regression line deviated by -3% from the line of identity.
在一个使用伺服呼吸机（瑞典西门子-伊莱玛公司）的实验模型中，在不同的吸入氧分数（FIO₂）下测量了氧耗量（V'O₂）和二氧化碳生成量（V'CO₂）。通过向呼吸机的吸气管道中添加氮气或二氧化碳来模拟气体交换。吸气和呼气气体收集在道格拉斯袋中，用质谱仪进行分析。实测V'O₂相对于预测V'O₂的回归剩余标准差为14毫升/分钟，与恒等线无显著差异。对于V'CO₂，相应的剩余标准差为3毫升/分钟。这条回归线与恒等线相差-3%。
