How is Dubin-Johnson syndrome diagnosed?

How is Dubin-Johnson syndrome diagnosed?

Your provider will diagnose Dubin-Johnson syndrome after providing a physical exam to look at your symptoms and learn more about your medical and family history.

Your provider will order tests to verify your diagnosis including:

• Imaging tests (X-ray, ultrasound) of your liver.
• Blood tests (bilirubin test).
• Urine tests.
• Possibly a liver biopsy.

A high bilirubin test result will lead to a diagnosis of hyperbilirubinemia (too much bilirubin in your blood). If your symptoms persist, your provider will order a genetic blood test to identify the gene that causes your symptoms. The genetic test confirms a diagnosis of Dubin-Johnson syndrome.