I have been doing the urine/glucose testing since Tyler was diagnosed. During all of those 4 months he has only had two clear tests. How often should I be testing his urine please? Does it matter if the urine was there from sometime overnight ? There is no probs with Ty using an unlittered tray . He will. Is it because his BG is too high for his kidneys most often than not? My concern is for his CKD stage II.