Pyelonephritis — nonspecific inflammatory process of the bacterial nature in a renal pelvis, renal cups and a parenchyma of a kidney with preferential defeat of its intersticial fabric. Unlike a glomerulonephritis one kidney is involved in process and mainly its canalicular device is damaged.
At uncomplicated acute pyelonephritis usually there is no danger of a delay in an organism of nitrogenous slags, sodium and liquid. Therefore restrictions in a diet, except for the products irritating kidneys and urinary tract (mustard, horse-radish, a radish, a garden radish, spinach, a sorrel, garlic) are not required.
At uncomplicated chronic pyelonephritis the usual balanced diet is recommended. At emergence of a polyuria it is necessary to use the increased amount of liquid. Salt should not be limited as owing to disturbance of a reabsorption in tubules of kidneys sodium in excess quantity is lost with urine.