What Are the Proper Bilirubin Levels?
Bilirubin, a byproduct of liver function, can cause health problems at abnormal levels. It is created during breakdown of old or red blood cells, and gives both bile and feces their yellow-brown color. Bilirubin levels can be measured either in the bloodstream or directly from the liver. Healthy levels in the bloodstream range from .20 milligrams per decileter (mg/dL) to 1.50 mg/dL. In the liver, healthy levels average between .00 and .03 mg/dL. These levels can be measured during liver function tests.