I know a guy who works in ER, I could never do that stuff. If I was doing it, I'd be like
'fuckfuckfuckfuck ummmm ok. So, errr this guy's had an aortic aneurysm... let's cut open his chest and see if we ca- *BOOM* argh, fuck blood everywhere! errrr, shit. um, let's, uhh'
Whereas this guy is like plugging up that burst vessel in no time, stabilising this patient and going "yeah, he'll hold out for about 3-4 more hours, my work is done. send him to XYZ department for ABC operation"