What condition might cause elevated bilirubin other than liver disease?

• A. Hemolysis
• B. Dehydration
• C. Kidney injury
• D. Hypothyroidism

Answer: (A)

When bilirubin rises without liver disease, think about increased production of bilirubin from red blood cell breakdown. Hemolysis speeds up the destruction of RBCs, releasing more heme which is converted to bilirubin. The liver can conjugate bilirubin for excretion, but if production is rapid, unconjugated bilirubin accumulates in the blood. That’s why hemolysis is a classic non-liver cause of elevated bilirubin.

Dehydration doesn’t drive bilirubin production, and kidney injury doesn’t directly raise bilirubin since the kidneys aren’t the main route for bilirubin clearance. Hypothyroidism isn’t a common, direct cause of elevated bilirubin either, though it can be associated with mild, nonspecific liver function changes in some contexts.