Know Your Blood Parameter : Direct Bilirubin

1. Parameter Name  Direct (Conjugated) Bilirubin
   

2. Test Type  Blood
   

3. Normal Range  0.0 – 0.3 mg/dL
   

4. High Levels Indicate  Obstruction of bile ducts, cholestasis, hepatitis, or cirrhosis.
   

5. Low Levels Indicate  Not typically clinically significant alone.
   

6. Why It's Tested  To help determine type of jaundice and identify bile duct obstruction.
   

7. Associated Symptoms (if abnormal)  Jaundice, pale stools, dark urine, itching
   

8. What To Do If Abnormal  Assess with total and indirect bilirubin; liver enzyme panel; imaging for bile ducts.
   

9. Common Conditions Related  Gallstones, hepatitis, cirrhosis, cholestasis
   

10. Nutrition or Lifestyle Connection  Maintain liver health; avoid fatty foods and alcohol; manage weight.
    

References (APA Format)

 MedlinePlus. (2023). Direct bilirubin.

 Mayo Clinic. (2022). Liver function tests.

 Cleveland Clinic. (2023). Bilirubin test.