@nycmusic You're absolutely right, we do show variations in our kidney function level. It could be from dehydration, or how tired we are at the time of the lab draw, or if we were recently sick, or any number of small unrelated conditions. It certainly doesn't take much, as our kidneys are the master filter agents for our body. I know for myself, hydration is a critical thing and I am very careful to keep myself hydrated. Also because I am on dialysis, I burn through protein a lot more than most people so I have to keep quality protein available to me.
Ginger