Diabetes is a common chronic disease in many people, and the rate is increasing. For diabetic patients requiring surgery, blood sugar is a risk factor for dangerous complications after surgery. Therefore, care and control of blood sugar before and after surgery is extremely important.

Hyperglycemia or hypoglycemia is a common disorder in intensive care units in both diabetic and non-diabetic patients. Uncontrolled hyperglycemia/hypoglycemia can be a cause of death in ICU patients.