Some clinical and laboratory features – haematuria, arterial hypertension and worsening of renal function can sometimes mimic the activity of chronic glomerulonephritis. Wrong interpretation of the signs and symptoms can lead to false clinical decisions. Innovative approaches to chronic glomerulonephritis activity monitoring include evaluation of urinary excretion of inflammatory and fibrogenic mediators, as well as immune cells and podocytes.

Keywords: renal failure, haematuria, nephritis syndrome, activity, acute glomerulonephritis, arterial hypertension