hahahahaha...I was talking to someone about this not too long ago. It was so much easier when I was ignorant and trusted every word the vet said.
Your dog should be maintained on Isoflourine or Sevoflourine. If not, run. These are the safest. If the vet does mask down with gas, that is great. Some won't and they insist on injecting something before hand. If they use an injectable, NO barbiturates. They can be dangerous. I believe Propofol is a barbiturate and this would be the exception to not using them because it is very safe. Ellie has been put under both ways. Using no injectables is better on the liver and Ellie has problems with that, so the vet masked down the second time.
Yorkies lose body heat easily. The surgery table must be heated.
Pain med should be given (some vets don't give it
).
Ellie was not sent home with antibiotics. It isn't necessary but is a good idea.
Does the vet use staples or stitches to close? You can read my post under "Emergencies" to see how I feel about staples.
Do they keep the dog overnight? If so, is there someone there the WHOLE time watching?
I know it can be so stressful when our doggies go in for surgery, so I hope this helps you.