Bella's appointment is next week to get spayed

While I'm happy she won't go into heat again, I'm starting to get really nervous. I was so worried when Rocky got neutered, but he did o.k, so at first I thought that would help me since I already had one small dog go under anesthetic, but as the time gets closer I'm getting more and more worried. So I found ANOTHER vet, long story short, one of our vets were way to expensive, and the other one that Rocky did get neutered at are very rude to me, so I'm not giving them my business anymore. Our friends go to another vet, so I looked into them and liked them, so that's where Bella is going to go. So she went to get her bloodwork done today to make sure she's healthy to undergo the surgery, and here's everything I got covered so far, can you guys think of anything else I need to make sure is done so she'll be safer?
Bloodwork
Painmeds to bring home
Isoflourine (sp?) anesthetic
She will be monitered when having the surgery by machines
She can come home the same day
Is there anything else important that I'm forgetting? I feel like there is.