Pre-test preparation or requirements
• Sample can be drawn at any time. No fasting or special preparation required.
• Sample should taken in plain vial.
0 to 0.4 mg/dl
Significance of test
Direct bilirubin is a parameter of liver function and hemoglobin (RBC) turnover. Bilirubin is degradation product of hemoglobin. Birubin is transported to liver for final excretion by conjugation. Direct bilirubin measures the conjugated bilirubin. Any injury to liver causes leakage of conjugated bilirubin to blood stream.