Generally speaking, if the procedure is long, we put the patients on what we call a sliding scale however in this circumstance, each doctor has their own idea about insulin. Some like to avoid the morning dose before surgery, then check blood sugars on admission for procedure, others will allow the patient to carry on as normal with their dosing (provided it is adjusted according to blood sugar levels given, there will be a period of fasting), then assess glucose levels on admission. Either way, some of us believe patients with type 1 insulin know their body better than the doctor when it comes to how their body responds to insulin at different times.
see this article below which might help you in getting an idea
Things an anesthetist can do to avoid that in severe cases:
1. Use multiple anti-sickness drugs that work in different ways, so if one fails, then you still have some hope that the other anti-sickness drugs will work.
2. Increase gut motility by giving medication as a premed.
3. Ensure adequate hydration during the procedure.
4. Use TIVA - total intravenous anesthesia, which has has amazing results. In this case, the anesthetic is injected continuously using a pump into a vein rather than inhaling a vapor while asleep.
Things like length of procedure, the admiting cause all play a very important role in predisposing the patient to complications. However, wisdom teeth extraction is a fairly safe surgical procedure that is done in abundance everyday everywhere in the world.
We say the chances of you dying from being hit by a car on the street are much higher than dying from anaesthetics.
In your case, if you are a young and fit person, follow the fasting guidelines before the procedure and there is nothing to worry about.
Other factors that can bring the sickness on is the length of procedure, site of procedure, and type of anaesthetic drugs used. Generally speaking, TIVA - total intravenous anaesthesia is less likely to cause nausea and sickness in comparison to inhalation anesthesia.