I believe that capnography would be a good tool for the BLS kit. It’s non-invasive, and even if you are not looking at wave forms, the numbers give some great information. Knowing the correct limits you can tell if a patient is oxygenating properly. It is a good indicator if your patient is about to go to **** quicker than a pulse ox. The numbers on the canography will drop a lot faster when a patient gets into respiratory distress or stops breathing by a minute or two depending on how well the patient was oxygenating before he decided to make you **** your pants.
There is absolutely no reason I can see not to put that piece of equipment in the BLS took kit. I have been a Paramedic and instructor for 32 years. If am EMT can read a glucometer and tell if a patient’s glucose is too high or low, of course with the exam, surely they can look at the numbers of a canograhy and tell if the patient is in trouble. It is not rocket science