End tidal CO2 Levels in Subclinical and Overt Hypothyroidism are Lower Than Healthy Control Subjects and the Level is Not Related to Thyroid Function Tests
Despite an insufficient correlation between EtCO2 and PvCO2, capnography was able to detect low and high CO2 warning levels with a similar efficacy to that of TcPCO2, and may therefore be of clinical interest.