Your first stop at a MVA

i usually only stop at a scene if there is nobody on scene yet and sometimes if it looks bad and there is only pd on scene, but I am also trained as a firefighter and have had times when i've been half an hour deep into cutting a car apart and had someone well intentioned come running up to the scene yelling that they are a nurse or doctor or emt. My rule of thumb is to only offer help if no one is really helping yet. and if my help is declined (even if it's rudely declined- it happens, trauma scenes are emotionally charged) i just carry on my way.

I'll stop and see if 911 has been called yet. Haven't needed to do more than that really, which I'm glad for.

I will only stop if there is no one there (like others said"...I've witness a car flip over behind me and eject the driver and hit a parked car--only thing I could do was check breath sounds (check for lung function) and neuro on the driver, (some bystander already moved him to the sidewalk :/) and check the other driver for injuries and shock. The second time I witness an old man fall like a sack of flour...stopped, assesses for pulse rate, loc, meds, got a quick history and passed it on to FD.

Both times I stopped FD seemed glad for a quick update, glad someone sorted the mess for them.

Posting from my phone, ease forgive my fat thumbs! :)

I follow same thought process. Stop if 1st one there or if it looks like another set of hands is needed. I do have a jump kit & o2 in the car, so I can work a scene if needed until ems shows up.

Now, with mvas, scene safety is paramount. Rubberneckers will NOT see you. Be very careful moving around the vehicle(s), especially if they're on their side. Be cognizant of undeployed airbags.