...and learn to identify a constricted capnography waveform, as opposed to a flat expiratory plateau. Using capnography can help you make those treatment decisions.
Unfortunately there are very few services in my area that utilize nasal capnography.They found after putting them on the trucks at my current service that there were too many paramedics that did not want to change their practice and the nasal capnography was almost never utilized so they took it off the trucks to save the money.
Agree that heart failure can produce a wheeze that sounds like asthma, but I don't think asthma/COPD is that difficult to distinguish from heart failure, and I have yet to see a patient that has a history of both.
Not sure about the demographics on the area you work in but we (on a daily basis) go to patients in very poor overall health with a history of CHF, MI, Afib, Stroke, Asthma, COPD, still currently smoke, Kidney failure....and I don't mean that patient has one of those, I mean patients who are currently being medicated for all those at once...