<prompt> What is the most common cause of chronic renal failure?Glomerulonephritis acute to chronicChronic pyelonephritisDiabetes mellitusHypeensive renal disease  <response>: The most common cause of chronic renal failure is diabetes mellitus, not glomerulonephritis. Foy percent of patients with Type I diabetes mellitus eventually develop diabetic nephropathy chronic renal failure. Twenty percent of patients with Type II diabetes mellitus develop diabetic nephropathy and subsequent chronic renal failure. Ref: Obrador G.T. 2009. Chapter 17. Chronic Renal Failure the Uremic Syndrome. In E.V. Lerma, J.S. Berns, A.R. Nissenson Eds, CURRENT Diagnosis Treatment: Nephrology Hypeension. 