 Unconjugated bilirubin is hydrophobic and therefore cannot be excreted in urine.Thus, the finding of increased urobilinogen in the urine without the presence of bilirubin in the urine (due to its unconjugated state) suggests hemolytic jaundice as the underlying disease process.Urobilinogen will be greater than 2 units (i.e., hemolytic anemia causes increased heme metabolism; exception