การประชุมวิชาการระดับชาติ ครั้งที่ 16
มหาวิทยาลัยราชภัฏนครปฐม

The objective of this research was to study the correlation between the calibration of respirators operating in Volume Control – Continuous Mandatory Ventilation (VC-CMV) and Pressure Control – Continuous Mandatory Ventilation (PC-CMV). This research was an analytical study conducted at Suranaree University of Technology Hospital. The sample in this research included 41 ventilators, which were used to measure monitoring accuracy calibration using the SMM 04-1 standard method, specifying three conditional calibration settings. The data were recorded using a recording form in each mode according to the parameters, including Inspiratory Tidal Volume (VT_I), Expiratory Tidal Volume (VT_E), Positive End Expiratory Pressure (PEEP), Oxygen Concentration (O₂), and Inspiratory Pressure (P_INSP). After that, the data were analyzed using the Pearson correlation coefficient and Simple Linear Regression. The results showed that VT_E, PEEP, and O₂ values in VC-CMV mode had a high correlation with the same parameters in PC-CMV mode (p<0.001). There was no correlation between PEEP values in VC-CMV mode and the P_INSP value in PC-CMV mode (p>0.05). When the model was built with parameters in VC-CMV mode to predict the same parameters in PC-CMV mode under conditions 1-3, the results showed that the VT_E model had efficiencies of 61.7%, 87.3%, and 73.6%, respectively. The PEEP model had efficiencies of 49.7%, 75.3%, and 74.7%, respectively, and the O₂ model had efficiencies of 12.1%, 45.3%, and 43.9%, respectively. The results indicated that both mode calibrations in the VT_E, PEEP, and O₂ parameters have a high correlation, Therefore the calibration results of such parameters in VC-CMV mode can be representative of the calibration results in PC-CMV mode.