Oh TP I'm truly sorry I know just how your feeling as this is exactly what happened with our dog and no matter how much you prepare yourself for bad news it's human nature and the love we have for our fluffy friends that deep down the vet will be able to do something no matter the cost, for some reason we just do prepare ourselves to be told sorry nothing can be done
The affects of the sedative will more than likely still be in her system thus making her slightly groggy and wobbly.