sir my mom is 66years old, diabetic,HT,post cabg,urea 60,creatinine 2,uncontrolled diabetics taking 30 units human mixtard 50 -50.,diamicron bd, galvus 50 mg.she has 300 fasting sugar level with these medicines.she is now recommended human mixtard and lantus 20 units in morning. will it affect her kidneys?