sir my father is having diebeties from the last 15 yrs .n now he is 65 yrs old,he is also a high blood pressure patient.few days before we had a check up and his urea level increases upto 166 and critinine was about 7.6,but he didnt have any symptoms like swelling ,vommiting etc.he hasnt take any insulin till nw,n we dont want any dailysis to b done,nw u guide us wat to do