Know Your Blood Parameter: Total Bilirubin

1. Parameter Name 

   Total Bilirubin

   
   

2. Test Type 

   Blood

   
   

3. Normal Range 

   0.3 – 1.2 mg/dL

   
   

4. High Levels Indicate 

   Liver dysfunction, bile duct blockage, hemolysis, or Gilbert’s syndrome.

   
   

5. Low Levels Indicate 

   Usually not concerning; occasionally seen with antioxidant supplementation.

   
   

6. Why It's Tested 

   Evaluates liver's ability to process waste and excrete bile.

   
   

7. Associated Symptoms (if abnormal) 

   Jaundice (yellowing of eyes/skin), dark urine, fatigue, abdominal pain

   
   

8. What To Do If Abnormal 

   Assess direct vs. indirect bilirubin; evaluate liver enzymes; consider imaging for bile ducts.

   
   

9. Common Conditions Related 

   Hepatitis, gallstones, hemolytic anemia, Gilbert’s syndrome

   
   

10. Nutrition or Lifestyle Connection 

    Avoid alcohol, stay hydrated, increase fiber, and manage iron levels if hemolysis-related.

    
    

11. References (APA Format)

    MedlinePlus. (2023). Bilirubin blood test.

    Mayo Clinic. (2022). Liver function tests.

    American Liver Foundation. (2023). Understanding bilirubin levels.