2 weeks ago my potassium level was 6.0, creatinine 1.1, and GFR 55. My Dr followed up these blood serum labs with a 24 hour creatine clearance urine test followed by repeated blood work. ( I was very careful in doing the urine test, with no errors in collection) My results showed potassium level of 4.3, creatinine 1.0 and GFR 61. I am glad to see the improvement. BUT I am confused by the results of my urine chemistry- My Creatine Clearance was flagged as low at 44. ( range is 88-128ml) ***Should I be concerned about that clearance result? Also I wonder why protein levels in the urine were not tested . I am a 54 yr old female, 5 ft tall 113 lbs . Should they have been?