Your mother is an Elderly Diabetic, hypertensive, CAD and acid peptic disease
Now her Uric acid level is high. now she is having hyperuricemia
. She may develop Gout.
high uric acid levels may cause renal stones.
She should be advised to take low protein diet
Both diabetes, hypertension
and hyperuricemia has a negative on the kidneys.
Regular renal evaluation is needed.