The importance of end-tidal CO2 (EtCO2) and capnography cannot be overstated for prehospital providers. This JEMS CEU course discusses the importance of EtCO2 and how to use PQRST method for interpretation using clinical applications and examples. You’ll also delve into using EtCO2 to identify states of shock and inform pain management care. This course will also discuss capnography in EMS, including interpreting waveforms and using interpretations to inform your treatment for intubated and non-intubated patients. Lastly, you’ll learn the pros and cons of using tools (such as colorimetric devices, capnometry, and capnography) to confirm proper airway placement and the risks for not using them.