In humans, soluble wastes are excreted primarily by the urinary system and, to a lesser extent in terms of urea removed, by perspiration. The urinary system consists of the kidneys, ureters, urinary bladder, and urethra. The system produces urine by a process of filtration, reabsorption, and tubular secretion.
Other blood tests used in diagnosing liver cancer include the following: 1  Liver-function tests, such as to check your level of the liver pigment bilirubin or the liver protein albumin. 2  Coagulation panel to check for problems with blood clotting.3  Blood counts to check your levels of different types of blood cells.ther blood tests used in diagnosing liver cancer include the following: 1  Liver-function tests, such as to check your level of the liver pigment bilirubin or the liver protein albumin. 2  Coagulation panel to check for problems with blood clotting.
Tests and procedures used to diagnose kidney cancer include: 1  Blood and urine tests. Tests of your blood and your urine may give your doctor clues about what's causing your signs and symptoms.  Imaging tests. Imaging tests allow your doctor to visualize a kidney tumor or abnormality.