Bilirubin

Definition

Bilirubin is a yellow compound that occurs in bile and is produced by the breakdown of red blood cells. It is processed by the liver and excreted in stool, giving feces its characteristic color.

5 Must Know Facts For Your Next Test

1. Elevated bilirubin levels can indicate liver dysfunction or hemolytic anemia.
2. There are two types of bilirubin: unconjugated (indirect) and conjugated (direct).
3. Jaundice, characterized by yellowing of the skin and eyes, occurs when bilirubin accumulates in the body.
4. Newborns often have higher bilirubin levels due to immature liver function, requiring monitoring and sometimes treatment.
5. Nutritional factors, such as protein intake, can influence bilirubin metabolism and liver health.

Review Questions

• What are the two types of bilirubin?
• How does elevated bilirubin manifest physically in patients?
• Why might newborns require monitoring for elevated bilirubin levels?

Related terms

Hemolytic Anemia:

A condition where red blood cells are destroyed faster than they can be produced.

Jaundice: A medical condition with yellowing of the skin or eyes caused by high bilirubin levels.

Liver Function Tests: Blood tests used to assess how well the liver is working by measuring substances like bilirubin.