Understanding Lab Tests for Jaundice
Written by Private MD Labs Medical Writing Team • Last Updated: September 8, 2025
Jaundice is a condition characterized by yellowing of the skin and whites of the eyes, caused by elevated levels of bilirubin in the blood. This yellow pigment is produced when red blood cells break down, and when the liver cannot process it properly, it accumulates in the body tissues.
Top Recommended Test
Liver Function Profile
This comprehensive test measures total bilirubin levels along with other liver enzymes and proteins. Elevated bilirubin levels directly correlate with jaundice symptoms, making this test essential for confirming the diagnosis and assessing overall liver function to identify potential underlying liver conditions.
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Diagnosing Jaundice with Blood Tests
While jaundice can often be visually apparent, blood tests are essential for confirming the diagnosis and measuring the exact levels of bilirubin. These tests help healthcare providers determine the severity of the condition and identify potential underlying causes such as liver disease, bile duct obstruction, or excessive red blood cell breakdown.
Other Relevant Tests
Post COVID-19 Expanded Panel
This expanded panel includes bilirubin testing among other markers and can be particularly useful for patients who have recovered from COVID-19, as the virus can sometimes affect liver function. Elevated bilirubin levels detected in this panel can confirm jaundice and help monitor post-viral complications affecting the liver.
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Understanding Your Results
Normal bilirubin levels typically range from 0.2 to 1.2 mg/dL in adults. When levels exceed 2.5 mg/dL, jaundice usually becomes visibly apparent. Your healthcare provider will interpret these results alongside your symptoms and medical history to determine the underlying cause and appropriate treatment plan.
Important Considerations
The information here is for educational purposes only and is not a substitute for professional medical advice. Always consult with a healthcare provider for diagnosis and treatment.
