Congratulations on getting your kitty spayed. You made a good choice.
A spay is a safe and routine procedure. First, the cat is given a preoperative exam to ensure that she is healthy. She should not be fed for twelve hours prior to surgery. This prevents aspiration pneumonia from food in the stomach that may be vomited and pass into the breathing tubes and lungs.
General anesthesia is used, but the cat can be brought out of anesthesia in a few minutes if there are any unforeseen complications. Many veterinarians have the same heart monitors used in hospital emergency rooms, along with emergency fluids and drugs. Postoperative complications are rare because sterilized instruments, drapes, caps, masks, and gowns are used. The size of the incision varies and has nothing to do with the skill of the veterinarian; some uteruses are simply larger than others.
A spayed cat can be on her feet minutes after surgery, and home the same day or the next day, depending on her age, size, and health. Recovery takes from five to fourteen days. to She may need to return to have sutures removed after a few days. During this time, exercise should be restricted and the incision must be kept clean. Any swelling, discharge, or infection should be reported immediately to the veterinarian.
You will need to prevent your kitty from trying to pull out the stiches or other material used to close the incision. If you cannot monitor the kitty closely (meaning every minute) ask the vet if they have a plastic collar to put on your kitty which prevents her from reaching her tummy until the stiches (or other material) is ready to be removed.
You feed the same food as always, she should be able to feed herself and be sure she is drinking plenty of water.