Diabetes Type I and Circulation in Leg

Hello Ted, I have a question; my mom has recently had abnormal test results for her kidneys. She is diabetic type 1 and has poor circulation in her left leg. Doctors want to try and fix the circulation in her leg, but really can't do anything until the results of the kidneys are resolved. She also has a heart pacemaker/ defibrillator. Is there anything you can suggest to help with her kidneys and or circulation issues in her leg? Please and thank you for your time.