Today's modern anesthetic monitors have made surgery much safer than in the past. At our hospital, we do a thorough physical exam on your pet before administering anesthetics, to ensure that a fever or other illness won't be a problem.
If serious problems are detected, surgery can be postponed until the problem is corrected. For geriatric or ill pets, additional blood tests, electrocardiograms, or x-rays may be required before surgery as well. It is important that surgery be done on an empty stomach to reduce the risk of vomiting during and after anesthesia. You will need to withhold food for at least 8 to 12 hours before surgery.