Assessing PaCO2 in acute respiratory disease: accuracy of a transcutaneous carbon dioxide device.

摘要: BACKGROUND Pulse oximetry non-invasively assesses the arterial oxygen saturation of patients with acute respiratory disease; however, measurement partial pressure carbon dioxide (PaCO(2)) requires an blood gas. The transcutaneous (PtCO(2) ) has been used in other settings variable accuracy. We investigated accuracy a PtCO(2) device assessment PaCO(2) asthma and suspected pneumonia attending emergency department. METHODS Patients severe (FEV(1) 18/min) were enrolled. Subjects excluded if they had history chronic obstructive pulmonary disease or conditions associated failure. Arterial gases taken at discretion investigator according to clinical need, paired simultaneous reading from probe. RESULTS Twenty-five studied one set data because poor signal quality. remaining 24 samples comprised 12 patients. range was 19-64 mmHg median 36.5 mmHg. Bland-Altman analysis showed mean (SD) - difference -0.13 (1.9) limits agreement plus minus 3.8 (-3.9 +3.7). CONCLUSION A accurate when compared These bedside monitors have potential improve patient care by monitoring risk hypercapnia.