Fun fact. Exalted Stunts are extremely flexible. They allow you to, among other things, add new elements to the scene. That's the entire point behind 2-dot stunts, in fact. They're supposed to encourage players to add new things to the environment, as a way of making the storytelling more cooperative.
Here, I've used that flexibility (in a massive stunt) to both define the nature of the wound, establish that our PC has some first aid training, and introduce an object to the scene for her to use in order to provide treatment (a small piece of metal, comparable in shape, size, and sharpness to a sewing needle). With a good enough stunt, you can do some crazy-as-hell shit without even using Charms. I have *also* alluded to the outcome-dictating mindset that supports Solar Charms and played upon her compassionate nature.
It's overlong, and I know nothing about medicine (although I do know enough to know that infection will still be a major risk, even more so now, most likely), but Solar Bullshit hopefully can make up for that.
[X] Can't leave her like this, she will die if something is not done.
-[X] You cant let her die, moving her is out of the question as she is but maybe you can stabilize her yourself. You have to try.
--[X] Stunt:
---[X] This woman...she's not going to last long enough for anyone else to save her. It has to be you. You have to try...no, no you can't afford to try. Do or do not. You will save this woman. She has a future, probably a family, and who knows what else waiting for her...you can't let her lose all of that, or deny the world her part in it.
---[X] Resolute, eyes burning with unshed tears, you strip off her coat and shirt--her modesty isn't half as important as her safety--and begin swiftly tearing the latter into makeshift bandages. They aren't perfect, but they'll help.
---[X] Still dissatisfied, your eyes scan the area for something in particular...and find it, by good fortune. A thin shred of metal, broken loose in the collapse. Narrow, sharp...it's not ideal, but you can make it work. You pull a few long hairs from your own head, twining them together, to complete your poor parody of a sewing kit.
---[X] Satisfied that you can at least stabilize her with these, you set to work, remembering your first aid classes...and the few occasions you've had to use those skills, when concerts got too rowdy. Now that her shirt's off, the situation is clear: Something, probably a piece of metal, had cut deep into her side. You don't think it hit any organs, thankfully, but she must have pulled it out without thinking it through, because the wound is open and bleeding freely.
---[X] You reach for your "needle." This will hurt, but that really doesn't matter right now, as she's already plenty out of it. It moves easily through the flesh, piercing clear holes for you to run your thread through. They're oversized and rough, but they do the trick...soon enough, your twined hair has stitched the wound tightly shut. With a normal needle, that would be enough, but blood still seeps from the very holes you created. That's what you'll need the bandages for...to stop the remaining blood flow. Quickly, you begin wrapping them around her torso, blocking the blood flow as well as you can.
---[X] It's not ideal. It's ugly, and you can't do anything about her concussion or anything else, but...you think she'll live, at least. You have to believe that, to keep going.
Congratulations, Detective. You've got me making the kind of massive votes I did back in my questing prime. Greatly appreciated, and I hope the length doesn't demand a veto.
Edit: Also, while it may appear that the Stunt dictates that we succeed in saving her, it doesn't actually do so. Even if we successfully stitch and bandage the wound, she's been bleeding as we worked, and her other injuries are still a thing. There is no guarantee that she'll live, even with our treatment, so I'm not taking that out of the QM's hands.
Edit 2: Have word from Crow that this is not a rules violation, at least.