Hi user Thanks for posting your query o Healthcare Magic You are developing diabetic nephropathy which is a long term complication of diabetes. To avoid kidney dysfunction following should be done. 1. Round the clock sugar control witn target HbA1c 2. Use of ACE inbitors or ARB drugs (you are alredy on Telmisartan) 3. Avoid nephrotoxic agents like antibiotic amikacin, radiocontrast dyes For further evaluation get USG kidney, urinary blader and ureter. This not only gives you information regarding structural changes of kidney but can rule other causes of raised creatinine for example stone, some time it happen raised creatinine in the presence of diabetes take as diabetic nephropathy and later on turn out obstructive uropathy which can be corrected by releasing obstruction Hope this information may be helpful to you. Takecare