Transcutaneous Monitoring of Carbon Dioxide and Oxygen

Although P_tcCO2 has a good correlation with P_aCO2 and is a reliable method to evaluate plasma CO₂ levels, it is recommended that arterial blood gas values be compared to TC readings taken at the time of arterial sampling, in order to verify the TC values, and periodically as dictated by the patient’s clinical condition. (1 – StrongA)