Bulk Biochemical Reagent Description Urea is one of the final products of amino acid catabolism in the body. Urea in the blood comes from the liver and is excreted with urine through the kidneys. The determination of urea content in serum can predict typeQuantitative Normal should not exceed 卤 10%. PrecisionWithin run repeatability CV 鈮?5%; between run relative range (R) 鈮?10%.Bulk Biochemical Reagent website:http://www.u-divds.com/biochemical-reagent/