You physician is doing the proper monitoring. I would also suggest that you have urine testing for blood, protein and blood. This should be part of your monitoring in addition to measurement of your estimated glomerular filtration rate (eGFR). You are already trying to treat the problem by following a good diet, exercising and reducing your weight. If you are doing all of these things, then you and your physician are appropriately monitoring and treating your kidney function. I also suggest that you limit your salt intake to less than 2300 milligrams of sodium per day in order to reduce the swelling in your ankles.