My father in law is 65 yrs old.creatinine is -3.5.it was 2.5 a month ago.potassium-4.3,liver tests and calcium normal,ESR raised.he has bilateral renal cysts,renal calculi 9.8 mm in rt kidney.there is a complication in rt cyst with septae.dr says its not malignant as no wt loss or fever is there,however mri cdnot b done properly as doc told dye is nephrotoxic used in mri.breathlessness is there.pedal oedema was there bt now ok.he is not diabetic bt hypertensive frm 3 years that also controlled.whole tests were done 1 month back only and we repeated them today creatine went up from 2.5 to 3.5,what can be done.he is taking treatment frm cardiologist.is this due to cyst or due to htn.cyst is around 40 mm in rt kidney and 32 mm in left kidney,pls tell shd we wait and watch or sm intervention is needed.