Don't panic too much, I'm sure she knows it was an accident
I know when we had our old dog, he would very often do this as he hated having his claws cut and so we made sure that we got some styptic- either in pencil form or you can get animal styptic powder or little pads. The pads can be bought from PAH and look like little cotton buds but when placed on the wound, they encourage clotting and stop bleeding.
If you have a PAH near you, they will definately stock them and will do the trick
They are called 'Blood stop swabs' and look like this...