Hi
@Franarama_ , hate to say this cos I assume you're already aware - no way should anyone be sticking you under general anaesthetic and taking a scalpel to you, with blood glucose at that sort of level - therefore the sooner you can get yours down to a better level, the sooner you'd be safe to operate on. Only thing is - whatever else is wrong - eg the gynae prob - will also be increasing your BG, cos that's what happens when the dear ole body produces antibodies to help it deal with and heal whatever else is up with it - vicious circle.
If whatever it is needs dealing with sooner rather than later - please don't try to stop them starting you on insulin pre-op either if they suggest that! Even if you do land up as a bog standard Type 2 and can easily treat that with Diet and/or tablets - get the op done and your body to get itself healed (cos any op is traumatic for your body even if you're looking forward to getting it sorted so not traumatic on the face of it to you personally at all)