1.   Since conjugated bilirubin is water-soluble, it will be excreted in the urine by the kidney.

2.   The circulating blood will characteristically contain excessive amounts of conjugated bilirubin.

3.   This is a rare familial disorder in which conjugated bilirubin levels are increased due to defective excretion of bilirubin in the bile.

4.   Urinary bilirubin levels are negative since the level of conjugated bilirubin is normal or only slightly increased.