Absolutely agree with this. I have a standard patter. “Hello I’m Dr Sullivan I’m a consultant anaesthetist. What do I call you?” I think it speaks to credibility. Do you want to be anaesthetised by “ Gav” or “Dr Sullivan” ?
I would alter “Assume no sustained exhaled CO2 = OI unless proven otherwise (by repeat VL/FOB/US/ODD)” to “Assume no sustained exhaled CO2 = OI. Remove tube inks unsafe. If unsafe exclude OI (by repeat VL/ & one of FOB/US/ODD)”
I would change “Assume no sustained exhaled CO2” to “Assume lack of sustained exhaled CO2” (or “failure to meet the criteria for….”) to avoid any possibly of conflating with “NO trace”