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.
In general, you should expect to start physical therapy 4 to 6 weeks after your lumbar surgery. If there were any post-operative complications like infection or excessive bleeding, then you may need to wait a bit longer. Conversely, if things have been smooth sailing after your surgery, you may start PT sooner.