Here is a link to eGFR calculation from National Kidney Foundation and a newsletter explaining it, that will be of help to you in discussing results with your Doctor. kidney.org/professionals/KD...
1.6 at your age I think probably pretty normal. You still have alot of function left your probably around 40 - 60 function. As long ng as the number is consistent. All other numbers look normal. Exercise frink water low protein
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