My eGFR has been monitored for the past year and has gone from 56 to 52 (based on 6 measurements, always a bit down, never up). Was initially referred to a consultant but he wrote right back saying he wasn't worried about my condition and did not need to see me until my GFR was down to 45. He recommended an ultrasound scan so that I might be reassured that my kidneys appeared normal (his words). This has indeed proved to be the case, although the sonographer tells me that at this early stage of the disease often nothing shows on an ultrasound.
As far as I am aware, no further investigations have been planned - only monitoring of GFR every few months. This leaves me wondering what is causing my CKD in the first place. Should I press for a diagnosis of the underlying cause? Is this important?