Capnography plays a crucial role in the treatment of a range of life-threatening conditions. Its central role following intubation is undeniable and it's also an important part of our approach to cardiac arrest and sedated patients of all kinds. Yet it is not always as straightforward as it might seem. In this episode, David and James speak with Matt Humar (intensive care paramedic, acting patient safety review lead at Ambulance Victoria, and secretary of the safe airway society) about matters capnographic.  Further reading https://derangedphysiology.com/main/cicm-primary-exam/required-reading/respiratory-system/Chapter%20414/difference-between-end-tidal-and-arterial-pco2 https://www.capnography.com/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4231274/