How do you know if you have kidney disease?

Blood tesy: The most common, albeit not most accurate, measure is creatinine level in the blood. This can be used as a close estimate of overall kidney function at a reasonable cost and patient tolerability.

Kidney disease : The simplest way is to have some blood taken as well as a urine analysis. If your BUN and creatinine are in the normal age, you probably have no significant renal disease. However, your creatinine level is dependent on your muscle mass and age, so that needs to be evaluated as well. If your urine analysis shows no protein, white blood cells or blood you are very unlikely to have kidney disease.