Do you know if she had as gas mask or IV catheter meds? If she had IV meds, you can ask which prescriptions. Some docs use one sedative, others use a combination. Then, if certain meds are used, certain pups have better and quicker filtering livers and kidneys. I would suggest, despite which anesthetic that was used, please encourage lots of water. If your puppy appears disoriented and/or weak-- call your Vet. Sometimes, some Gatorade will restore electrolyte loss from not eating the day of surgery. Number one advice: call your vet with any concerns, immediately!