A week before she died I had my first ever endoscopy scheduled, for tomorrow morning at 8:45. I am a little nervous. They called yesterday to confirm and I had several questions about the anesthetic and if someone would be attending me throughout. They answered everything to my satisfaction. Wish me luck.
I even have to fight for my life with dentists I need only 1/4 of "dose" they say is necessary to put me under.
Point is, you're the boss. If they give you less than you need, they can very quickly up the dose mid-procedure. Much better than walking -- and driving--around groggy or worse for days afterward.