Normal level of circulating bilirubin is 0.2 to 1.2mg % in plasma. A bilirubin level of 5 mg % is considered as dangerous and need to be properly investigated to know the underlying pathology for excess bilirubin production in the body or defective and inefficient bilirubin excretion from the body in the form of further degradation product.What can cause an elevated bilirubin?
Mononucleosis, cirrhosis and hepatitis can all cause liver damage and elevated bilirubin levels, as can diseases that block the bile ducts, including pancreatic cancer and gallstones. The rapid destruction of red blood cells from allergic reactions during a blood transfusion or sickle cell anemia may also cause levels to increase.What does an elevated bilirubin level mean?
High levels of bilirubin can cause dark urine, pale stool, and jaundice, which is yellowing of the skin and whites of the eyes. Elevated bilirubin could mean there is liver damage or another disorder that makes it hard for the body to break down bilirubin.