Just wondering if anyone knows anything about the above. My ds aged 3 had a blood test last April which showed slightly raised U&E. It was repeated in July and again showed the same result. His paed was saying sometimes if your dehydrated this can caused the levels to be raised. I know for a fact he def wasn't dehydrated as he does drink a fair bit (mostly milk). Not sure if this would caused a raised result. Anyway it's being repeated next week and just wondering if anyone has any experience of this.