Usually without symtoms, the renal impairment is often found upon a routine blood test. In Western countries, the kidney diseases mainly result from diabetes mellitus or hypertension. Screening tests for renal disease as well as for diabetes and hypertension are crucial. Especially as different actions are able to slow down, even to stop, the progression of the renal insufficiency. By doing that, the risk to reach the end-stage renal disease is significantly decrease, preventing to the patient a heavy and costly therapy such as dialysis or kidney transplantation.
Among renal disease patients, the hypertension is observed in 50 to 80% of cases, leading to a faster decline of renal function. Moreover, the hypertension combined to renal disorders absolutely increases the risk for death from cardiovascular causes.