Hello and welcome to YT. I am sorry to hear about Bella's passing but at least she was in a loving home for her last few months rather than the hell hole she stated out in at the puppy mill. Definitely get blood work done to make sure Pasha Rose can handle the anesthesia.
Here are some YT post that might help.
Pets and Anesthesia | Tufts Now http://www.yorkietalk.com/forums/die...-protocol.html