At the basic level it's all load and go. Your primarily transportation, that's just the facts of life. At the medic level if it doesn't require urgent surgical intervention you usually have a bit of time to sort things.
Not always so. If your pt is definitely in ths lls ( looks like $hit) category you want a medic. But for 90% of trauma and 40% of medical, waiting for als is just b.s. When you get some time logged feel free to play within your scope