There isn't a single, definitive bilirubin level that diagnoses liver failure. Instead, elevated bilirubin levels are a symptom of liver dysfunction, and its severity can indicate the stage of liver disease.
Here's what you should know about bilirubin and liver failure:
- Bilirubin is a yellow pigment produced when red blood cells break down. A healthy liver processes bilirubin and removes it from the body.
- Elevated bilirubin levels, known as hyperbilirubinemia, can cause jaundice. This occurs when bilirubin accumulates in the blood and tissues, giving the skin and whites of the eyes a yellowish hue.
- In liver failure, bilirubin levels can rise significantly. This is because the damaged liver can't process bilirubin efficiently.
- While a bilirubin level above 1.2 mg/dL is generally considered elevated, the severity of liver disease is determined by a combination of factors, including:
- Other liver function tests: Such as AST, ALT, ALP, and GGT.
- Clinical presentation: Signs and symptoms like jaundice, ascites, and encephalopathy.
- Underlying cause: The reason for liver dysfunction, such as hepatitis, cirrhosis, or drug toxicity.
A high bilirubin level alone does not automatically indicate liver failure. However, it's a crucial indicator of liver dysfunction that requires further investigation.
Remember, a doctor needs to evaluate your individual case and consider all relevant factors to determine the severity of liver disease.