<s>[INST] Please find below the recent result of my Liver function and kidney function tests and help me with the meaning and implication of this. Electrolytes, Urea & Creatinine: S-CO2 31mmol/1 S-Urea 2.4mmol/1 Liver functions: S-Unconjugated Bilirubin 15umol/1 Liver Enzymes: S- ALT 43u/1 37 c My mail addresss is YYYY@YYYY [/INST] hi,  Both your liver function test and kidney function tests are normal.Blood urea and serum creatinine are measured for evaluating kiney functions. both are breakdown products of protein and if they are excreted normally by the kidneys, the blood levels of these will be within normal limits.  Serum bilirubin is a byproduct of breakdown of old red blood cells in the body.  Elevated unconjugated bilirubin and ALT means even though liver might be functioning normally, there is obstruction in the excreting system of liver. It could be because of stones, tumour, or strictures.regards </s>