Zari had an elevated ALT in her pre-op spay blood work also...since she was already fasting they went ahead with the acid bile test ....which turned out to be within normal limits......they had her back in q 6 months for Alts and she has never had any abnormalities since...her spay was then completed about 3 weeks ( I think ) later.
As for having the vaccines done, I would also wait...Izzy had a bad reaction to Profopol last month and they would not give her the rabies vaccine for a few weeks following that to allow her immune system to recover....best to always weigh on the side of caution in my opinion