[Renal colic: behavior of urinary parameters in the assessment of lithogenic risk]. / Colica renale: comportamento dei parametri urinari di valutazione del rischio litogeno.

In patients with renal colic we studied lithogenic urinary risk factors before and after the stone passage. We showed abnormalities in water, electrolytes and other substances excretion due to retention and metabolic disorders. The effects more pronounced is on urinary sodium, calcium, magnesium and ammonium. Citrate behaviour suggests a transient intracellular acidosis.