Getting your body well hydrated and maximizing nutrient stores going into surgery positions you to better withstand the stress of surgery. Surgery puts an extra “stress” on bodily functions and increases the body’s need for energy and nutrients. Some of the medicines used for anesthesia during surgery may cause dangerous drops in your blood pressure especially in patients who have been required to fast since the evening before the surgery. The old practice of fasting food and liquid from the evening before surgery is no longer recommended. Drinking measured amounts of carbohydrate-rich fluids up to 2 hours before surgery is currently recommended as safe and serve the dual purpose of meeting increased nutrient requirements and minimizing the risk of dangerous blood pressure drops during anesthesia and surgery.
Download and Read Article: Preoperative Carbohydrate Loading: Weaponizing Your Patients for Surgery
See the following link for more information: http://anesthesiology.pubs.asahq.org/article.aspx?articleid=2596245