Final answer:
True, a high level of urobilinogen and bilirubin in urine can suggest liver disease, as this indicates the liver's impaired ability to process and excrete bilirubin due to damage or dysfunction.
Step-by-step explanation:
A urine sample that is high in both urobilinogen and bilirubin can indeed indicate liver disease, which makes the statement true. When the liver is damaged, possibly due to factors such as alcoholism, toxic substances, or viral or bacterial infections, its cells may not function properly. This leads to elevated levels of both conjugated and unconjugated bilirubin in the blood. Elevated urobilinogen in urine is a sign of this dysfunction because in a healthy person, a properly functioning liver would convert and excrete bilirubin. Moreover, jaundice might occur when bilirubin accumulates in the body because the liver can't remove it efficiently from circulation.