My 22mth old daughter was being tested for DI, because she was always thirsty, and uriniating large amounts. She had the water deprivation test. Throughout the test, her nephrologist was very pleased with the results he was getting, and said he was 99% sure that everything was fine, and she definitely didn't have DI. However, the full report will be back in 3-4wks.
I recieved a call that just like the nephrologist stated before, her urine and blood was concentrated like it should be, BUT somehow her vasopressin levels were almost non-exsistent. They should be normal as well. I was told that the renal team will be conversing with the endocrinology team, and getting back to me, since this is "perplexing."
My question is, how could her concentration be so normal, if there was no vasopressin? What is helping her concentrate? Is this a sign there is something wrong with her pitituary or hypothalmus? (excuse the spelling)
I know the doctors will explain things to me, but I hate going in blind, and I need something to go on here! Any help would be appreciated! Thank you!