Dog hasn't urinated in over 24 hours, all tests normal?

Asked: Dog hasn't urinated in over 24 hours, all tests normal?My 11 y/o Lab has not peed in over 24 hours. She is drinking and eating her normal amount. She went to the vet this morning. They ran bloodwork, and everything came back normal. The vet felt her bladder and said it didn't feel full, so he was worried about a kidney problem, but all the bloodwork was normal; vet said the results were as good as a puppy's. She has no other symptoms. She's eating, drinking, happy, and

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