Glad to hear that Rocky got a good check up! The vets probably knew, but just in case not, you need to do a blood glucose check where the ferret has fasted for 3 hours. If they have eaten in the hour or two before it could be a false high reading, and if you fast them longer than the 3 (or 4) hours (as you would for a dog or cat) there bg would dip too low and would be dangerous for their health. [Posted in FML 5557]