If you have diabetes, urine testing should be performed yearly to look for diabetic nephropathy -- kidney disease. A baseline creatinine blood test should also be done to determine your kidney function. Your health care provider will also check your blood pressure regularly, because control of high blood pressure is essential in slowing kidney disease. Blood pressure should be less than 130/80. Read about other symptoms of kidney disease in this health topic, such as persistent leg or feet swelling. Find out when to call your doctor to prevent serious problems.