Freebase(0.00 / 0 votes)Rate this definition: Fatigue. Fatigue is a subjective feeling of tiredness which is distinct from weakness, and has a gradual onset. Unlike weakness, fatigue can be alleviated by periods of rest.
Surgery can be delayed, medications can be given to help reduce the acidity and volume of stomach contents, or maneuvers may be employed to protect from aspiration, for example placing a cuffed endotracheal tube into the trachea.y placing a patient on NPO status, there will be nothing to aspirate because any food would have been absorbed into the small intestines by that time of surgery 6-8 hrs later. + 23 others found this useful.
Preoperative Instructions & Checklist. 1  No alcohol five days prior to surgery. 2  Eat a light breakfast before surgery. 3  Eat a light lunch before surgery. 4  Please limit your party to two friends or family members. 5  Plan to be at our office for 4-6 hours. 6  Cancel all activities for the day of surgery and possibly longer.