Causes and implications of High and Low Bilirubin Levels

6. Testing Bilirubin Levels

The 'Van Den Bergh Reaction Test' is a blood test that checks bilirubin levels. Blood from the test subject is treated to make the red blood cells separate from the fluid or serum. The diluted serum mixed with a unique chemical will determine the level of waste product built-up in the blood.  If the test detects elevated levels of bilirubin, a doctor will look at all the blood serum tests to confirm the results and identify damage to the liver. Additional tests could involve a physical exam, checking for a liver that's enlarged or tender, and imaging tests (ultrasound or a CT scan) to visualize the liver. An endoscopy looks at the ducts through which bile travels through the gut, checking for obstructions. In rare cases, a liver biopsy is necessary, and the doctor will examine a small piece of the organ.

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