I don’t mean to sound callous, but shit happens, especially with pets. Dogs are notorious for eating things they shouldn’t, I assure you a dog could find something to get in to that they shouldn’t and that could harm or even kill them even in the tidiest house.
Now if you’d said you didn’t take her to her appointment, or didn’t even call the vet, I’d have some harsh things to say, but you reacted and acted appropriately to an accident.
You did the right thing in a difficult situation, try not to beat yourself up over it or hold yourself up to an impossible (read: neurotypical) standard (easier said than done, I know), and be there for her as she recovers.
Mostly people are interested in what might benefit their lives. Not the thousands of hours it took to get there.
Nor in anything that might benefit the lives of people they see themselves completely detached from or even superior to, even if in reality they are either much more alike than they ever would or could admit, and or could end up in the other person’s shoes in a heartbeat.
https://theanarchistlibrary.org/category/author/murray-bookchin