As an EMT-B, basically, O2 and vitals, then transport, meet
ALS enroute if PT appears unstable.
My concern with other answers on here are this: Where in the EMT-B (and new EMT) curriculum is a pulse ox taught, and interpreted? Yes, I use my own SpO2 monitor that I carry on calls, but I do NOT use that to determine if patient needs O2 therapy. And any EMT who does, is well... fill in the blank. It is an assessment tool, NOT a tool to determine if a patient requires O2. Its little stuff like this that really makes EMTs look bad. There are so many times an pulse ox is not accurate and should not determine if a patient needs o2 (as an earlier post stated --paraphrasing slightly-- "I'll give o2 after consulting a pulse ox").
Nice to have, good to use, but great way to loose one's job or patient's life.
Anyway, to continue further about being berated by a medic. In my 17+ years, I've had many medics try to berate me. When I was newer, I used to get upset over it. Now, I don't care. Why? Because I've been burned by the little old lady who was "weak" with stable vitals who was an actual MI patient. Or recently a "most likely flu" type patient who was vomiting and diarrhea (mild chest pain after all that started, so first thought? Muscle pain from vomiting a lot). Ended up, a STEMI. I beat the medics to the punch if its one that will try to make a snide comment by usually saying "guys, you know if I walked into the ER with this and this, I'm going to get my ass handed to me.. sorry but I have no choice". Of course, now a days, I've been around long enough that I only get an attitude from a new medic and usually that happens once... after that one time, they learn real quick I've been around too long to try mess around with lol.. I know too many of their people
