@susanm9006 - They were not able to get a urine sample at the vets, just the contaminated sample I got from home. So, since the blood has been sent to the lab for analysis and results will not be available until tomorrow, I am assuming the glucose showed up in the urine?? Dealing with a junior vet (last minute appt) I have never dealt with, so maybe I misunderstood her. But, if they can test the blood for glucose before it is sent out to the lab, then maybe it came from that. I would think it was from the urine sample.