One of my 9 month old ferrets had his first blood test this week just as a base for future bloodwork. The vet said his values for urea and creatinine were a bit high. I did some research and find some discrepancy in what is considered the normal range for these. Before I have him re-tested, does anyone have info about this that I can relay to my vet [ a wonderful man who values a ferrets health over his own ego ]. Thanks. Inge [Posted in FML issue 5170]