I still have about 2 months before it's time to get Madison spayed. She is 4 months and 6.7 lbs. It costs $105 + $5 for each tooth. I have read on here a while back about testing before being spayed. (I'm not sure if this is included in the $105 or not.) What kind of testing? What's it for? How necessary is it? I know prices differ but around about how much would this testing cost? Thanks!!