Testing for Direct Bilirubin in Blood

The lab analyst measures the amount of direct bilirubin in a patient’s blood. Bilirubin is the yellow color pigment found in the bile, a fluid made by the liver. Direct bilirubin is a water soluble form of bilirubin, or one which can dissolve in water. Production of direct bilirubin is a final step in a complex sequence of actions that occurs as the body rids itself of the waste product of the old red blood cells. Choose a location to see hospital-reported price summaries. This page does not show national, sample, or aggregate pricing.