I just had knee surgery in march and it went great! I have a pump and CGM and both were used during surgery as well as good ol fashion finger sticks. My BG was tested every 30 mins for an 1 and 1/2 hr surgery and my BG never went below 100 or above 150so for me it was a great exeperience and the anesthesiologist learned alot about the cgm and its usefulness in the OR. Good luck!!
Watch out for the IV drip… In Feb I had the dreaded colonosopy ( yes I am in the 50 years old catagory). I was on MDI then and I was asked not to take my Lantus that morning, no eating no drinking. I was find prior to the procedure room 80. But one hour later after the procedure I was 250! I corrected immediately, took my Lantus and life goes on. But my concern, would always be “who is watching the pot” if I am not.
I did this test thing on another website. I think it was Diabetes heath Magazine. The test was everyday things that we do. These questions were addressed to medical staff i.e. Dr’s, Nurses, all those people that you believe get it. The question was things like correction percentages, hypo/hyper corrections and other “what if” scenerios. I was able to get every single questions correct but the medical team did poorly. That is concerning.
Also it is important that your spouse or if you are an adult a parent to question? Or, Monitor the staff. Have them follow up with the staff. Make them ask “how is my wife’s diabetes being managaged.” What is her BS
I had surgery in January…everything went fine. I backed off my insulin, and then when I was in recovery the nurse had ME check my sugar and it was pretty high. It was hard for me to deal with it, but the nurse was unsure how to check it…WEIRD!!
I was kinda out of it, so it was hard to give myself a shot. It would have been better to have someone who knows you well and how to deal with checking it…giving you insulin…what ever you need, because a nurse may not know how to handle it.
You will be fine!
Thanks again, everybody! I feel better now 
The anesthesiologist will put you on IV insulin/dextrose drip. They test blood sugar every hour and adjust to give you insulin if high and dextrose if low. The drip is instantaneous… no wait to take effect.
I had this exact same thing last year. (My blood sugars were low, I fell on the ice and fractured my ankle.)
I wasn’t feeling well or hungry the night before the surgery, so I didn’t eat much. I halved my Lantus, but I was still really low in the morning and missed my ride to the hospital. The hospital and my family kept calling me, but I was really low and didn’t answer. (Has nothing to do with the ankle, but gives background.) They’d told me I wasn’t allowed to eat anything before the surgery, so I didn’t take any sugar. (I realize now that was ridiculous, but I was low and not thinking clearly.) Anyway, my body finally produced enough sugar to get me up, and I caught a cab to the hospital.
I was 6 hours late, but they decided I was there, they might as well fix it. Anyway, they tested me a bunch; I was still low, so they pumped my IV full of sugar. I don’t know if they tested while I was in there, but they gave me enough sugar to be fine. Plus it didn’t last that long, and I woke up pretty quickly.
If you’re really worried, I guess you can tell them and they can pump you full of sugar or they can check you when they’re done.
I had a c-section under general 4 months ago and they definitely tested me several times during it because as I was waking up, I could hear the doc and the nurse discussing what my BGs were during the surgery. Definitely make a point of mentioning it and as someone else pointed out, make sure you specify that you do not want dextrose in the iv! I believe it’s the anesthesiologist that is responsible for everything going smoothly in terms of breathing, blood sugars, etc…Good luck!