In type I diabetes insulin must be administered during nutritional support. The method of insulin administration is dependent on the clinical situation, presence of inflammation, method of nutrition delivery (enteral or parenteral) and other conditions.
In type II diabetic patients oral drug treatment should be stopped in stress conditions. Obese type II diabetic patients often profit from hypocaloric nutrition but only when they are stable and any acute inflammatory illness has passed.
This may improve their condition before elective procedures. However, strict monitoring of these patients is necessary in both types of diabetes mellitus.