What if the case is so straightforward (you've see thousands of these, hundreds a year, the entire system is built around them) that you know the diagnosis in less than the blink of an eye?
What if it's emergent, and you have no time to think, like a major hemorrhage? Not only is it obvious, but you must act now, right now?
What if there is a highly studied, routinized process (e.g. cardiac arrest) where you're managing a team going through the diagnostic procedure and treatment, which, over decades, have become a carefully interleaved dance performed at stacatto pace, and, again, there is no time to consult an LLM?
What if? What if? What if?
Are you so certain?