RESUMO
The aim of this study was to establish the characteristics of renal failure in patients with cirrhosis and compare their laboratory data on blood and urine with those of patients with chronic renal failure without liver disease; and then to correlate the data of patients with cirrhosis and renal failure with that of patients with cirrhosis without renal failure in relation to liver function There were three groups of patients: group A - patients with cirrhosis and renal failure; group K1-patients with cirrhosis without renal failure; and group K2-patients with chronic renal failure. The parameters of renal and liver function were also compared. The laboratory data on blood and urine in patients with cirrhosis and renal failure revealed characteristics of prerenal failure in a higher degree (functional renal failure). When liver failure was concerned there was no difference between patients with cirrhosis and renal failure and subjects with cirrhosis and no renal failure. The degree of renal failure was not always the same regarding the degree of liver failure although they can sometimes paralell.